mirror of
https://github.com/sigmasternchen/php-doc-en
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5bff99a4e0
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@161483 c90b9560-bf6c-de11-be94-00142212c4b1
80 lines
2.5 KiB
XML
80 lines
2.5 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.4 $ -->
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<!-- splitted from ./en/functions/filesystem.xml, last change in rev 1.2 -->
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<refentry id="function.stream-set-write-buffer">
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<refnamediv>
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<refname>stream_set_write_buffer</refname>
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<refpurpose>Sets file buffering on the given stream</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>int</type><methodname>stream_set_write_buffer</methodname>
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<methodparam><type>resource</type><parameter>stream</parameter></methodparam>
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<methodparam><type>int</type><parameter>buffer</parameter></methodparam>
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</methodsynopsis>
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<simpara>
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Output using <function>fwrite</function> is normally buffered at
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8K. This means that if there are two processes wanting to write
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to the same output stream (a file), each is paused after 8K of
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data to allow the other to write.
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<function>stream_set_write_buffer</function>
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sets the buffering for write operations on the given filepointer
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<parameter>stream</parameter> to <parameter>buffer</parameter> bytes.
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If <parameter>buffer</parameter> is 0 then write operations are
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unbuffered. This ensures that all writes with
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<function>fwrite</function> are completed before other processes
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are allowed to write to that output stream.
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</simpara>
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<simpara>
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The function returns 0 on success, or EOF if the request cannot
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be honored.
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</simpara>
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<para>
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The following example demonstrates how to use
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<function>stream_set_write_buffer</function> to create an unbuffered stream.
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<example>
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<title><function>stream_set_write_buffer</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$fp = fopen($file, "w");
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if ($fp) {
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stream_set_write_buffer($fp, 0);
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fwrite($fp, $output);
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fclose($fp);
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}
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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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<simpara>
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See also
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<function>fopen</function> and
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<function>fwrite</function>.
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</simpara>
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</refsect1>
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</refentry>
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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:"../../../../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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