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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@301112 c90b9560-bf6c-de11-be94-00142212c4b1
55 lines
2 KiB
XML
55 lines
2 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<chapter xml:id="sockets.errors" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
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<title>Socket Errors</title>
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<para>
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The socket extension was written to provide a usable interface to the
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powerful BSD sockets. Care has been taken that the functions work equally
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well on Win32 and Unix implementations. Almost all of the sockets
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functions may fail under certain conditions and therefore emit an
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<constant>E_WARNING</constant> message describing the error. Sometimes this
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doesn't happen to the desire of the developer. For example the function
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<function>socket_read</function> may suddenly emit an
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<constant>E_WARNING</constant> message because the connection broke
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unexpectedly. It's common to suppress the warning with the
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<literal>@</literal>-operator and catch the error code within the
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application with the <function>socket_last_error</function> function. You
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may call the <function>socket_strerror</function> function with this error
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code to retrieve a string describing the error. See their description for
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more information.
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</para>
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<note>
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<para>
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The <constant>E_WARNING</constant> messages generated by the socket
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extension are in English though the retrieved error message will appear
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depending on the current locale (<constant>LC_MESSAGES</constant>):
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<screen>
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<![CDATA[
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Warning - socket_bind() unable to bind address [98]: Die Adresse wird bereits verwendet
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]]>
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</screen>
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</para>
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</note>
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</chapter>
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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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