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https://github.com/sigmasternchen/php-doc-en
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1fbad5b192
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@93011 c90b9560-bf6c-de11-be94-00142212c4b1
66 lines
2.3 KiB
XML
66 lines
2.3 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.3 $ -->
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<!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.7 -->
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<refentry id="function.pg-trace">
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<refnamediv>
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<refname>pg_trace</refname>
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<refpurpose>Enable tracing a PostgreSQL connection</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>bool</type><methodname>pg_trace</methodname>
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<methodparam><type>string</type><parameter>pathname</parameter></methodparam>
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<methodparam choice="opt"><type>string</type><parameter>mode</parameter></methodparam>
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<methodparam choice="opt"><type>resource</type><parameter>connection</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>pg_trace</function> enables tracing of the PostgreSQL
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frontend/backend communication to a debugging file specified as
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<parameter>pathname</parameter>. To fully understand the results,
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one needs to be familiar with the internals of PostgreSQL
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communication protocol. For those who are not, it can still be
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useful for tracing errors in queries sent to the server, you
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could do for example <command>grep '^To backend'
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trace.log</command> and see what query actually were sent to the
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PostgreSQL server. For more information, refer to PostgreSQL
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manual.
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</para>
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<para>
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<parameter>pathname</parameter> and <parameter>mode</parameter>
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are the same as in <function>fopen</function>
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(<parameter>mode</parameter> defaults to 'w'),
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<parameter>connection</parameter> specifies the connection to
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trace and defaults to the last one opened.
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</para>
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<para>
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It returns &true; if <parameter>pathname</parameter> could be opened
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for logging, &false; otherwise.
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</para>
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<para>
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See also <function>fopen</function> and
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<function>pg_untrace</function>.
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</para>
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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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