mirror of
https://github.com/sigmasternchen/php-doc-en
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1233 lines
40 KiB
XML
1233 lines
40 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<sect1 xml:id="opcache.configuration" xmlns="http://docbook.org/ns/docbook">
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&reftitle.runtime;
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&extension.runtime;
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<para>
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<table>
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<title>OPcache configuration options</title>
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<tgroup cols="4">
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<thead>
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<row>
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<entry>&Name;</entry>
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<entry>&Default;</entry>
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<entry>&Changeable;</entry>
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<entry>&Changelog;</entry>
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</row>
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</thead>
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<tbody xml:id="opcache.configuration.list">
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<row>
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<entry><link linkend="ini.opcache.enable">opcache.enable</link></entry>
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<entry>"1"</entry>
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<entry>PHP_INI_ALL</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.enable-cli">opcache.enable_cli</link></entry>
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<entry>"0"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry>Between PHP 7.1.2 and 7.1.6 inclusive, the default was "1"</entry>
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</row>
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<row>
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<entry><link
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linkend="ini.opcache.memory-consumption">opcache.memory_consumption</link></entry>
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<entry>"128"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.interned-strings-buffer">opcache.interned_strings_buffer</link></entry>
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<entry>"8"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.max-accelerated-files">opcache.max_accelerated_files</link></entry>
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<entry>"10000"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.max-wasted-percentage">opcache.max_wasted_percentage</link></entry>
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<entry>"5"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.use-cwd">opcache.use_cwd</link></entry>
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<entry>"1"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.validate-timestamps">opcache.validate_timestamps</link></entry>
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<entry>"1"</entry>
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<entry>PHP_INI_ALL</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.revalidate-freq">opcache.revalidate_freq</link></entry>
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<entry>"2"</entry>
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<entry>PHP_INI_ALL</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.revalidate-path">opcache.revalidate_path</link></entry>
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<entry>"0"</entry>
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<entry>PHP_INI_ALL</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.save-comments">opcache.save_comments</link></entry>
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<entry>"1"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.fast-shutdown">opcache.fast_shutdown</link></entry>
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<entry>"0"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry>Removed in PHP 7.2.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.enable-file-override">opcache.enable_file_override</link></entry>
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<entry>"0"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.optimization-level">opcache.optimization_level</link></entry>
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<entry>"0x7FFEBFFF"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry>Changed from 0x7FFFBFFF in PHP 7.3.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.inherited-hack">opcache.inherited_hack</link></entry>
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<entry>"1"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry>Removed in PHP 7.3.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.dups-fix">opcache.dups_fix</link></entry>
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<entry>"0"</entry>
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<entry>PHP_INI_ALL</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.blacklist-filename">opcache.blacklist_filename</link></entry>
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<entry>""</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.max-file-size">opcache.max_file_size</link></entry>
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<entry>"0"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.consistency-checks">opcache.consistency_checks</link></entry>
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<entry>"0"</entry>
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<entry>PHP_INI_ALL</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.force-restart-timeout">opcache.force_restart_timeout</link></entry>
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<entry>"180"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.error-log">opcache.error_log</link></entry>
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<entry>""</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.log-verbosity-level">opcache.log_verbosity_level</link></entry>
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<entry>"1"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.preferred-memory-model">opcache.preferred_memory_model</link></entry>
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<entry>""</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.protect-memory">opcache.protect_memory</link></entry>
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<entry>"0"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.mmap-base">opcache.mmap_base</link></entry>
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<entry>&null;</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.restrict-api">opcache.restrict_api</link></entry>
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<entry>""</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.file_update_protection">opcache.file_update_protection</link></entry>
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<entry>"2"</entry>
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<entry>PHP_INI_ALL</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.huge_code_pages">opcache.huge_code_pages</link></entry>
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<entry>"0"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.lockfile_path">opcache.lockfile_path</link></entry>
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<entry>"/tmp"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.opt_debug_level">opcache.opt_debug_level</link></entry>
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<entry>"0"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry>Available as of PHP 7.1.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.file-cache">opcache.file_cache</link></entry>
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<entry>NULL</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.file-cache-only">opcache.file_cache_only</link></entry>
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<entry>"0"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.file-cache-consistency-checks">opcache.file_cache_consistency_checks</link></entry>
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<entry>"1"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.file-cache-fallback">opcache.file_cache_fallback</link></entry>
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<entry>"1"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry>Windows only.</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.validate-permission">opcache.validate_permission</link></entry>
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<entry>"0"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry>Available as of PHP 7.0.14</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.validate-root">opcache.validate_root</link></entry>
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<entry>"0"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry>Available as of PHP 7.0.14</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.preload">opcache.preload</link></entry>
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<entry>""</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry>Available as of PHP 7.4.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.preload-user">opcache.preload_user</link></entry>
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<entry>""</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry>Available as of PHP 7.4.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.cache-id">opcache.cache_id</link></entry>
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<entry>""</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry>Windows only. Available as of PHP 7.4.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.jit">opcache.jit</link></entry>
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<entry>"tracing"</entry>
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<entry>PHP_INI_ALL</entry>
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<entry>Available as of PHP 8.0.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.jit-buffer-size">opcache.jit_buffer_size</link></entry>
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<entry>"0"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry>Available as of PHP 8.0.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.jit-debug">opcache.jit_debug</link></entry>
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<entry>"0"</entry>
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<entry>PHP_INI_ALL</entry>
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<entry>Available as of PHP 8.0.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.jit-bisect-limit">opcache.jit_bisect_limit</link></entry>
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<entry>"0"</entry>
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<entry>PHP_INI_ALL</entry>
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<entry>Available as of PHP 8.0.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.jit-prof-threshold">opcache.jit_prof_threshold</link></entry>
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<entry>"0.005"</entry>
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<entry>PHP_INI_ALL</entry>
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<entry>Available as of PHP 8.0.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.jit-max-root-traces">opcache.jit_max_root_traces</link></entry>
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<entry>"1024"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry>Available as of PHP 8.0.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.jit-max-side-traces">opcache.jit_max_side_traces</link></entry>
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<entry>"128"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry>Available as of PHP 8.0.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.jit-max-exit-counters">opcache.jit_max_exit_counters</link></entry>
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<entry>"8192"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry>Available as of PHP 8.0.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.jit-hot-loop">opcache.jit_hot_loop</link></entry>
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<entry>"64"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry>Available as of PHP 8.0.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.jit-hot-func">opcache.jit_hot_func</link></entry>
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<entry>"127"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry>Available as of PHP 8.0.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.jit-hot-return">opcache.jit_hot_return</link></entry>
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<entry>"8"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry>Available as of PHP 8.0.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.jit-hot-side-exit">opcache.jit_hot_side_exit</link></entry>
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<entry>"8"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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<entry>Available as of PHP 8.0.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.jit-blacklist-root-trace">opcache.jit_blacklist_root_trace</link></entry>
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<entry>"16"</entry>
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<entry>PHP_INI_ALL</entry>
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<entry>Available as of PHP 8.0.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.jit-blacklist-side-trace">opcache.jit_blacklist_side_trace</link></entry>
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<entry>"8"</entry>
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<entry>PHP_INI_ALL</entry>
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<entry>Available as of PHP 8.0.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.jit-max-loop-unrolls">opcache.jit_max_loop_unrolls</link></entry>
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<entry>"8"</entry>
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<entry>PHP_INI_ALL</entry>
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<entry>Available as of PHP 8.0.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.jit-max-recursive-calls">opcache.jit_max_recursive_calls</link></entry>
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<entry>"2"</entry>
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<entry>PHP_INI_ALL</entry>
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<entry>Available as of PHP 8.0.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.jit-max-recursive-return">opcache.jit_max_recursive_returns</link></entry>
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<entry>"2"</entry>
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<entry>PHP_INI_ALL</entry>
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<entry>Available as of PHP 8.0.0</entry>
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</row>
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<row>
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<entry><link linkend="ini.opcache.jit-max-polymorphic-calls">opcache.jit_max_polymorphic_calls</link></entry>
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<entry>"2"</entry>
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<entry>PHP_INI_ALL</entry>
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<entry>Available as of PHP 8.0.0</entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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&ini.php.constants;
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</para>
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&ini.descriptions.title;
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<para>
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<variablelist>
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<varlistentry xml:id="ini.opcache.enable">
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<term>
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<parameter>opcache.enable</parameter>
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<type>bool</type>
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</term>
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<listitem>
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<para>
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Enables the opcode cache. When disabled, code is not optimised or
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cached. The setting <literal>opcache.enable</literal> can not be
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enabled at runtime through <function>ini_set</function>, it can only
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be disabled. Trying to enable it in a script will generate a warning.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="ini.opcache.enable-cli">
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<term>
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<parameter>opcache.enable_cli</parameter>
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<type>bool</type>
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</term>
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<listitem>
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<para>
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Enables the opcode cache for the CLI version of PHP.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="ini.opcache.memory-consumption">
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<term>
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<parameter>opcache.memory_consumption</parameter>
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<type>int</type>
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</term>
|
|
<listitem>
|
|
<para>
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The size of the shared memory storage used by OPcache, in megabytes.
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The minimum permissible value is <literal>"8"</literal>,
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which is enforced if a smaller value is set.
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</para>
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</listitem>
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</varlistentry>
|
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<varlistentry xml:id="ini.opcache.interned-strings-buffer">
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<term>
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<parameter>opcache.interned_strings_buffer</parameter>
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<type>int</type>
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</term>
|
|
<listitem>
|
|
<para>
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The amount of memory used to store interned strings, in megabytes.
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</para>
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</listitem>
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</varlistentry>
|
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<varlistentry xml:id="ini.opcache.max-accelerated-files">
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<term>
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<parameter>opcache.max_accelerated_files</parameter>
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<type>int</type>
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</term>
|
|
<listitem>
|
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<para>
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The maximum number of keys (and therefore scripts) in the OPcache hash
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table. The actual value used will be the first number in the set of
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prime numbers
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<literal>{ 223, 463, 983, 1979, 3907, 7963, 16229, 32531, 65407, 130987, 262237, 524521, 1048793 }</literal>
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that is greater than or equal to the configured value. The minimum value is 200. The maximum
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value is 1000000.
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Values outside of this range are clamped to the permissible range.
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</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.max-wasted-percentage">
|
|
<term>
|
|
<parameter>opcache.max_wasted_percentage</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
The maximum percentage of wasted memory that is allowed before a restart
|
|
is scheduled, if there is insufficient free memory.
|
|
The maximum permissible value is <literal>"50"</literal>,
|
|
which is enforced if a larger value is set.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.use-cwd">
|
|
<term>
|
|
<parameter>opcache.use_cwd</parameter>
|
|
<type>bool</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
If enabled, OPcache appends the current working directory to the script
|
|
key, thereby eliminating possible collisions between files with the same
|
|
base name. Disabling this directive improves performance, but may break
|
|
existing applications.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.validate-timestamps">
|
|
<term>
|
|
<parameter>opcache.validate_timestamps</parameter>
|
|
<type>bool</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
If enabled, OPcache will check for updated scripts every
|
|
<link linkend="ini.opcache.revalidate-freq">opcache.revalidate_freq</link>
|
|
seconds. When this directive is disabled, you must reset OPcache
|
|
manually via <function>opcache_reset</function>,
|
|
<function>opcache_invalidate</function> or by restarting the Web server
|
|
for changes to the filesystem to take effect.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.revalidate-freq">
|
|
<term>
|
|
<parameter>opcache.revalidate_freq</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
How often to check script timestamps for updates, in seconds.
|
|
<literal>0</literal> will result in OPcache checking for updates on
|
|
every request.
|
|
</para>
|
|
<para>
|
|
This configuration directive is ignored if
|
|
<link linkend="ini.opcache.validate-timestamps">opcache.validate_timestamps</link>
|
|
is disabled.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.revalidate-path">
|
|
<term>
|
|
<parameter>opcache.revalidate_path</parameter>
|
|
<type>bool</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
If disabled, existing cached files using the same
|
|
<link linkend="ini.include-path">include_path</link> will be reused.
|
|
Thus, if a file with the same name is elsewhere in the include_path, it
|
|
won't be found.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.save-comments">
|
|
<term>
|
|
<parameter>opcache.save_comments</parameter>
|
|
<type>bool</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
If disabled, all documentation comments will be discarded from the
|
|
opcode cache to reduce the size of the optimised code. Disabling this
|
|
configuration directive may break applications and frameworks that rely
|
|
on comment parsing for annotations, including Doctrine, Zend Framework 2
|
|
and PHPUnit.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.fast-shutdown">
|
|
<term>
|
|
<parameter>opcache.fast_shutdown</parameter>
|
|
<type>bool</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
If enabled, a fast shutdown sequence is used that doesn't free each
|
|
allocated block, but relies on the Zend Engine memory manager to
|
|
deallocate the entire set of request variables en masse.
|
|
</para>
|
|
<para>
|
|
This directive has been removed in PHP 7.2.0. A variant of the fast
|
|
shutdown sequence has been integrated into PHP and will be automatically
|
|
used if possible.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.enable-file-override">
|
|
<term>
|
|
<parameter>opcache.enable_file_override</parameter>
|
|
<type>bool</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
When enabled, the opcode cache will be checked for whether a file has
|
|
already been cached when <function>file_exists</function>,
|
|
<function>is_file</function> and <function>is_readable</function> are
|
|
called. This may increase performance in applications that check the
|
|
existence and readability of PHP scripts, but risks returning stale data
|
|
if
|
|
<link linkend="ini.opcache.validate-timestamps">opcache.validate_timestamps</link>
|
|
is disabled.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.optimization-level">
|
|
<term>
|
|
<parameter>opcache.optimization_level</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
A bitmask that controls which optimisation passes are executed.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.inherited-hack">
|
|
<term>
|
|
<parameter>opcache.inherited_hack</parameter>
|
|
<type>bool</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
This configuration directive is ignored.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.dups-fix">
|
|
<term>
|
|
<parameter>opcache.dups_fix</parameter>
|
|
<type>bool</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
This hack should only be enabled to work around "Cannot redeclare class"
|
|
errors.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.blacklist-filename">
|
|
<term>
|
|
<parameter>opcache.blacklist_filename</parameter>
|
|
<type>string</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
The location of the OPcache blacklist file. A blacklist file is a text
|
|
file containing the names of files that should not be accelerated, one
|
|
per line. Wildcards are allowed, and prefixes can also be provided.
|
|
Lines starting with a semi-colon are ignored as comments.
|
|
</para>
|
|
<para>
|
|
A simple blacklist file might look as follows:
|
|
</para>
|
|
<informalexample>
|
|
<programlisting>
|
|
<![CDATA[
|
|
; Matches a specific file.
|
|
/var/www/broken.php
|
|
; A prefix that matches all files starting with x.
|
|
/var/www/x
|
|
; A wildcard match.
|
|
/var/www/*-broken.php
|
|
]]>
|
|
</programlisting>
|
|
</informalexample>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.max-file-size">
|
|
<term>
|
|
<parameter>opcache.max_file_size</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
The maximum file size that will be cached, in bytes. If this is
|
|
<literal>0</literal>, all files will be cached.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.consistency-checks">
|
|
<term>
|
|
<parameter>opcache.consistency_checks</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
If non-zero, OPcache will verify the cache checksum every N requests,
|
|
where N is the value of this configuration directive. This should only
|
|
be enabled when debugging, as it will impair performance.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.force-restart-timeout">
|
|
<term>
|
|
<parameter>opcache.force_restart_timeout</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
The length of time to wait for a scheduled restart to begin if the cache
|
|
isn't active, in seconds. If the timeout is hit, then OPcache assumes
|
|
that something is wrong and will kill the processes holding locks on the
|
|
cache to permit a restart.
|
|
</para>
|
|
<para>
|
|
If
|
|
<link linkend="ini.opcache.log-verbosity-level">opcache.log_verbosity_level</link>
|
|
is set to 2 or above, a warning will be recorded in the error log when
|
|
this occurs.
|
|
</para>
|
|
<para>
|
|
This directive is not supported on Windows.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.error-log">
|
|
<term>
|
|
<parameter>opcache.error_log</parameter>
|
|
<type>string</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
The error log for OPcache errors. An empty string is treated the same as
|
|
<literal>stderr</literal>, and will result in logs being sent to
|
|
standard error (which will be the Web server error log in most cases).
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.log-verbosity-level">
|
|
<term>
|
|
<parameter>opcache.log_verbosity_level</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
The log verbosity level. By default, only fatal errors (level 0) and
|
|
errors (level 1) are logged. Other levels available are warnings (level
|
|
2), information messages (level 3) and debug messages (level 4).
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.preferred-memory-model">
|
|
<term>
|
|
<parameter>opcache.preferred_memory_model</parameter>
|
|
<type>string</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
The preferred memory model for OPcache to use. If left empty, OPcache
|
|
will choose the most appropriate model, which is the correct behaviour
|
|
in virtually all cases.
|
|
</para>
|
|
<para>
|
|
Possible values include <literal>mmap</literal>, <literal>shm</literal>,
|
|
<literal>posix</literal> and <literal>win32</literal>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.protect-memory">
|
|
<term>
|
|
<parameter>opcache.protect_memory</parameter>
|
|
<type>bool</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Protects shared memory from unexpected writes while executing scripts.
|
|
This is useful for internal debugging only.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.mmap-base">
|
|
<term>
|
|
<parameter>opcache.mmap_base</parameter>
|
|
<type>string</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
The base used for shared memory segments on Windows. All PHP processes
|
|
have to map shared memory into the same address space. Using this
|
|
directive allows "Unable to reattach to base address" errors to be
|
|
fixed.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.restrict-api">
|
|
<term>
|
|
<parameter>opcache.restrict_api</parameter>
|
|
<type>string</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Allows calling OPcache API functions only from PHP scripts which path
|
|
is started from specified string. The default "" means no restriction.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.file_update_protection">
|
|
<term>
|
|
<parameter>opcache.file_update_protection</parameter>
|
|
<type>string</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Prevents caching files that are less than this number of seconds old.
|
|
It protects from caching of incompletely updated files. In case all file
|
|
updates on your site are atomic, you may increase performance by setting it to "0".
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.huge_code_pages">
|
|
<term>
|
|
<parameter>opcache.huge_code_pages</parameter>
|
|
<type>bool</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Enables or disables copying of PHP code (text segment) into HUGE PAGES.
|
|
This should improve performance, but requires appropriate OS configuration.
|
|
Available on Linux as of PHP 7.0.0, and on FreeBSD as of PHP 7.4.0.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.lockfile_path">
|
|
<term>
|
|
<parameter>opcache.lockfile_path</parameter>
|
|
<type>string</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Absolute path used to store shared lockfiles (for *nix only)
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.opt_debug_level">
|
|
<term>
|
|
<parameter>opcache.opt_debug_level</parameter>
|
|
<type>string</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Produces opcode dumps for debugging different stages of optimizations.
|
|
0x10000 will output opcodes as the compiler produced them before any optimization occurs
|
|
while 0x20000 will output optimized codes.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.file-cache">
|
|
<term>
|
|
<parameter>opcache.file_cache</parameter>
|
|
<type>string</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Enables and sets the second level cache directory. It should improve
|
|
performance when SHM memory is full, at server restart or SHM reset. The
|
|
default "" disables file based caching.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.file-cache-only">
|
|
<term>
|
|
<parameter>opcache.file_cache_only</parameter>
|
|
<type>bool</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Enables or disables opcode caching in shared memory.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.file-cache-consistency-checks">
|
|
<term>
|
|
<parameter>opcache.file_cache_consistency_checks</parameter>
|
|
<type>bool</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Enables or disables checksum validation when script loaded from file cache.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.file-cache-fallback">
|
|
<term>
|
|
<parameter>opcache.file_cache_fallback</parameter>
|
|
<type>bool</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Implies opcache.file_cache_only=1 for a certain process that failed to
|
|
reattach to the shared memory (for Windows only). Explicitly enabled file
|
|
cache is required.
|
|
</para>
|
|
<caution>
|
|
<simpara>
|
|
Disabling this configuration option may prevent processes to start,
|
|
and is therefore discouraged.
|
|
</simpara>
|
|
</caution>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.validate-permission">
|
|
<term>
|
|
<parameter>opcache.validate_permission</parameter>
|
|
<type>bool</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Validates the cached file permissions against the current user.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.validate-root">
|
|
<term>
|
|
<parameter>opcache.validate_root</parameter>
|
|
<type>bool</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Prevents name collisions in chroot'ed environments. This should be enabled in
|
|
all chroot'ed environments to prevent access to files outside the chroot.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.preload">
|
|
<term>
|
|
<parameter>opcache.preload</parameter>
|
|
<type>string</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Specifies a PHP script that is going to be compiled and executed at server start-up,
|
|
and which may preload other files, either by <function>include</function>ing them or by
|
|
using the <function>opcache_compile_file</function> function. All the entities (e.g.
|
|
functions and classes) defined in these files will be available to requests out of
|
|
the box, until the server is shut down.
|
|
</para>
|
|
<note>
|
|
<para>
|
|
Preloading is not supported on Windows.
|
|
</para>
|
|
</note>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.preload-user">
|
|
<term>
|
|
<parameter>opcache.preload_user</parameter>
|
|
<type>string</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Preloading code as root is not allowed for security reasons. This directive
|
|
facilitates to let the preloading to be run as another user.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.cache-id">
|
|
<term>
|
|
<parameter>opcache.cache_id</parameter>
|
|
<type>string</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
On Windows, all processes running the same <acronym>PHP</acronym> <acronym>SAPI</acronym>
|
|
under the same user account having the same cache ID share a single OPcache instance.
|
|
The value of the cache ID can be freely chosen.
|
|
</para>
|
|
<tip>
|
|
<simpara>
|
|
For IIS, different application pools can have their own OPcache instance
|
|
by using the environment variable <envar>APP_POOL_ID</envar> as
|
|
<parameter>opcache.cache_id</parameter>.
|
|
</simpara>
|
|
</tip>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.jit">
|
|
<term>
|
|
<parameter>opcache.jit</parameter>
|
|
<type class="union"><type>string</type><type>int</type></type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
For typical usage, this option accepts one of four string values:
|
|
</para>
|
|
<simplelist>
|
|
<member><literal>disable</literal>: Completely disabled, cannot be enabled at runtime.</member>
|
|
<member><literal>off</literal>: Disabled, but can be enabled at runtime.</member>
|
|
<member>
|
|
<literal>tracing</literal>/<literal>on</literal>: Use tracing JIT.
|
|
Enabled by default and recommended for most users.
|
|
</member>
|
|
<member><literal>function</literal>: Use function JIT.</member>
|
|
</simplelist>
|
|
<para>
|
|
For advanced usage, this option accepts a 4-digit integer <literal>CRTO</literal>, where the digits mean:
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><literal>C</literal> (CPU-specific optimization flags)</term>
|
|
<listitem>
|
|
<simplelist>
|
|
<member><literal>0</literal>: Disable CPU-specific optimization.</member>
|
|
<member><literal>1</literal>: Enable use of AVX, if the CPU supports it.</member>
|
|
</simplelist>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><literal>R</literal> (register allocation)</term>
|
|
<listitem>
|
|
<simplelist>
|
|
<member><literal>0</literal>: Don't perform register allocation.</member>
|
|
<member><literal>1</literal>: Perform block-local register allocation.</member>
|
|
<member><literal>2</literal>: Perform global register allocation.</member>
|
|
</simplelist>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><literal>T</literal> (trigger)</term>
|
|
<listitem>
|
|
<simplelist>
|
|
<member><literal>0</literal>: Compile all functions on script load.</member>
|
|
<member><literal>1</literal>: Compile functions on first execution.</member>
|
|
<member>
|
|
<literal>2</literal>: Profile functions on first request and compile
|
|
the hottest functions afterwards.
|
|
</member>
|
|
<member><literal>3</literal>: Profile on the fly and compile hot functions.</member>
|
|
<member><literal>4</literal>: Currently unused.</member>
|
|
<member>
|
|
<literal>5</literal>: Use tracing JIT. Profile on the fly and
|
|
compile traces for hot code segments.
|
|
</member>
|
|
</simplelist>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><literal>O</literal> (optimization level)</term>
|
|
<listitem>
|
|
<simplelist>
|
|
<member><literal>0</literal>: No JIT.</member>
|
|
<member><literal>1</literal>: Minimal JIT (call standard VM handlers).</member>
|
|
<member><literal>2</literal>: Inline VM handlers.</member>
|
|
<member><literal>3</literal>: Use type inference.</member>
|
|
<member><literal>4</literal>: Use call graph.</member>
|
|
<member><literal>5</literal>: Optimize whole script.</member>
|
|
</simplelist>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
The <literal>"tracing"</literal> mode corresponds to <code>CRTO = 1254</code>,
|
|
the <literal>"function"</literal> mode corresponds to <code>CRTO = 1205</code>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.jit-buffer-size">
|
|
<term>
|
|
<parameter>opcache.jit_buffer_size</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
The amount of shared memory to reserve for compiled JIT code. A zero value disables the JIT.
|
|
</para>
|
|
&ini.shorthandbytes;
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.jit-debug">
|
|
<term>
|
|
<parameter>opcache.jit_debug</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
A bit mask specifying which JIT debug output to enable.
|
|
For possible values, please consult <filename>zend_jit.h</filename>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.jit-bisect-limit">
|
|
<term>
|
|
<parameter>opcache.jit_bisect_limit</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Debugging option that disables JIT compilation after compiling a certain number of functions.
|
|
This may be helpful to bisect the source of a JIT miscompilation.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.jit-prof-threshold">
|
|
<term>
|
|
<parameter>opcache.jit_prof_threshold</parameter>
|
|
<type>float</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
When using the "profile on first request" trigger mode, this threshold determines whether a
|
|
function is considered hot. The number of calls to the function divided by the number of calls
|
|
to all functions must be above the threshold. For example, a threshold of 0.005 means that
|
|
functions that made up more than 0.5% of all calls will be JIT compiled.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.jit-max-root-traces">
|
|
<term>
|
|
<parameter>opcache.jit_max_root_traces</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Maximum number of root traces.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.jit-max-side-traces">
|
|
<term>
|
|
<parameter>opcache.jit_max_side_traces</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Maximum number of side traces a root trace may have.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.jit-max-exit-counters">
|
|
<term>
|
|
<parameter>opcache.jit_max_exit_counters</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Maximum number of side trace exit counters. This limits the total number of side traces
|
|
there may be, across all root traces.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.jit-hot-loop">
|
|
<term>
|
|
<parameter>opcache.jit_hot_loop</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
After how many iterations a loop is considered hot.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.jit-hot-func">
|
|
<term>
|
|
<parameter>opcache.jit_hot_func</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
After how many calls a function is considered hot.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.jit-hot-return">
|
|
<term>
|
|
<parameter>opcache.jit_hot_return</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
After how many returns a return is considered hot.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.jit-hot-side-exit">
|
|
<term>
|
|
<parameter>opcache.jit_hot_side_exit</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
After how many exits a side exit is considered hot.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.jit-blacklist-root-trace">
|
|
<term>
|
|
<parameter>opcache.jit_blacklist_root_trace</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Maximum number of times the compilation of a root trace is attempted before it is blacklisted.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.jit-blacklist-side-trace">
|
|
<term>
|
|
<parameter>opcache.jit_blacklist_side_trace</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Maximum number of times the compilation of a side trace is attempted before it is blacklisted.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.jit-max-loop-unrolls">
|
|
<term>
|
|
<parameter>opcache.jit_max_loop_unrolls</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Maximum number of attempts to unroll a loop in a side trace,
|
|
trying to reach the root trace and close the outer loop.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.jit-max-recursive-calls">
|
|
<term>
|
|
<parameter>opcache.jit_max_recursive_calls</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Maximum number of unrolled recursive call loops.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.jit-max-recursive-return">
|
|
<term>
|
|
<parameter>opcache.jit_max_recursive_returns</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Maximum number of unrolled recursive return loops.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="ini.opcache.jit-max-polymorphic-calls">
|
|
<term>
|
|
<parameter>opcache.jit_max_polymorphic_calls</parameter>
|
|
<type>int</type>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
Maximum number of attempts to inline polymorphic (dynamic or method) calls.
|
|
Calls above this limit are treated as megamorphic and are not inlined.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</para>
|
|
</sect1>
|
|
|
|
<!-- Keep this comment at the end of the file
|
|
Local variables:
|
|
mode: sgml
|
|
sgml-omittag:t
|
|
sgml-shorttag:t
|
|
sgml-minimize-attributes:nil
|
|
sgml-always-quote-attributes:t
|
|
sgml-indent-step:1
|
|
sgml-indent-data:t
|
|
indent-tabs-mode:nil
|
|
sgml-parent-document:nil
|
|
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
|
|
sgml-exposed-tags:nil
|
|
sgml-local-catalogs:nil
|
|
sgml-local-ecat-files:nil
|
|
End:
|
|
vim600: syn=xml fen fdm=syntax fdl=2 si
|
|
vim: et tw=78 syn=sgml
|
|
vi: ts=1 sw=1
|
|
-->
|