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https://github.com/sigmasternchen/php-doc-en
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b0085f3057
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@97686 c90b9560-bf6c-de11-be94-00142212c4b1
63 lines
2 KiB
XML
63 lines
2 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.1 $ -->
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<!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.61 -->
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<refentry id='function.pg-unescape-bytea'>
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<refnamediv>
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<refname>pg_unescape_bytea</refname>
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<refpurpose>
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Escape binary for bytea type
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</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>string</type><methodname>pg_unescape_bytea</methodname>
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<methodparam><type>string</type><parameter>data</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>pg_unescape_bytea</function> unescapes string from
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bytea datatype. It returns unescaped string (binary).
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</para>
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<note>
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<para>
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When you SELECT bytea type, PostgreSQL returns octal byte value
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prefixed by \ (e.g. \032). Users are supposed to convert back to
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binary format by yourself.
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</para>
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<para>
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This function requires PostgreSQL 7.2 or later. With PostgreSQL
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7.2.0 and 7.2.1, bytea type must be casted when you enable
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multi-byte support. i.e. <literal>INSERT INTO test_table (image)
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VALUES ('$image_escaped'::bytea);</literal> PostgreSQL 7.2.2 or
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later does not need cast. Exception is when client and backend
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character encoding does not match, there may be multi-byte
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stream error. User must cast to bytea to avoid this error.
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</para>
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</note>
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<para>
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See also <function>pg_escape_bytea</function> and
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<function>pg_escape_string</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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