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https://github.com/sigmasternchen/php-doc-en
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65a007a4c0
https://bugs.php.net/bug.php?id=74931 git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@342669 c90b9560-bf6c-de11-be94-00142212c4b1
107 lines
3 KiB
XML
107 lines
3 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<appendix xml:id="outcontrol.examples" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
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&reftitle.examples;
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<section xml:id="outcontrol.examples.basic">
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<title>Basic usage</title>
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<para>
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<example>
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<title>Output Control example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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ob_start();
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echo "Hello\n";
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setcookie("cookiename", "cookiedata");
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ob_end_flush();
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?>
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]]>
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</programlisting>
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</example>
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</para>
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<para>
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In the above example, the output from <function>echo</function>
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would be stored in the output buffer until
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<function>ob_end_flush</function> was called. In the mean time,
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the call to <function>setcookie</function> successfully stored a
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cookie without causing an error. (Headers cannot normally be sent
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to the browser after data has already been sent.)
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</para>
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</section>
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<section xml:id="outcontrol.examples.rewrite">
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<title>Output rewrite usage</title>
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<para>
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Since PHP 7.1.0, <function>output_add_rewrite_var</function>, <function>output_reset_rewrite_vars</function> use dedicated output buffer. i.e. It does not use <link linkend="ini.session.use-trans-sid">trans sid</link> output buffer.
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</para>
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<para>
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<example>
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<title>Output rewrite example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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// This code works with PHP 7.1.0, 7.0.10, 5.6.25 and up.
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// HTTP_HOST is default target host. Set manually to make sample code works.
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$_SERVER['HTTP_HOST'] = 'php.net';
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// Output rewriter only rewrite form. Add a=href.
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// Tags can be specified tag_name=url_attr, e.g. img=src,iframe=src
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// No space allowed between settings.
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// Form tag is special tag that add hidden input.
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ini_set('url_rewriter.tags','a=href,form=');
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var_dump(ini_get('url_rewriter.tags'));
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// This is added to URL and form
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output_add_rewrite_var('test', 'value');
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?>
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<a href="//php.net/index.php?bug=1234">bug1234</a>
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<form action="https://php.net/?bug=1234&edit=1" action="post">
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<input type="text" name="title" />
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</form>
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]]>
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</programlisting>
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&example.outputs;
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<screen>
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<![CDATA[
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<a href="//php.net/?bug=1234&test=value">bug1234</a>
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<form action="https://php.net/?bug=1234&edit=1" method="post"><input type="hidden" name="test" value="value" />
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<input type="text" name="title" />
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</form>
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]]>
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</screen>
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</example>
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</para>
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<para>
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Since PHP 7.1.0, output rewrite functions have it's own INI settings, <link linkend="ini.url-rewriter.tags">url_rewriter.tags</link> and <link linkend="ini.url-rewriter.hosts">url_rewriter.hosts</link>.
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</para>
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</section>
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</appendix>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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