mirror of
https://github.com/sigmasternchen/php-doc-en
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43ed9a3d9e
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@146902 c90b9560-bf6c-de11-be94-00142212c4b1
68 lines
2.3 KiB
XML
68 lines
2.3 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.6 $ -->
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<!-- splitted from ./en/functions/sockets.xml, last change in rev 1.1 -->
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<refentry id="function.socket-last-error">
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<refnamediv>
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<refname>socket_last_error</refname>
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<refpurpose>Returns the last error on the socket </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>socket_last_error</methodname>
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<methodparam choice="opt"><type>resource</type><parameter>socket</parameter></methodparam>
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</methodsynopsis>
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&warn.experimental.func;
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<para>
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This function returns a socket error code.
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</para>
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<para>
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If a socket resource is passed to this function, the last error which
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occurred on this particular socket is returned. If the socket resource is
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omitted, the error code of the last failed socket function is returned.
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The latter is in particular helpful for functions like
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<function>socket_create</function> which don't return a socket on
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failure and <function>socket_select</function> which can fail for reasons
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not directly tied to a particular socket. The error code is suitable to
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be fed to <function>socket_strerror</function> which returns a string
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describing the given error code.
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<programlisting role="php">
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<![CDATA[
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<?php
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if (false == ($socket = @socket_create(AF_INET, SOCK_STREAM, SOL_TCP))) {
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die("Couldn't create socket, error code is: " . socket_last_error() .
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",error message is: " . socket_strerror(socket_last_error()));
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}
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?>
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]]>
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</programlisting>
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</para>
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<note>
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<para>
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<function>socket_last_error</function> does not clear the error code, use
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<function>socket_clear_error</function> for this purpose.
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</para>
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</note>
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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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