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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 297028 $ -->
<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.sql-regcase">
<refnamediv>
<refname>sql_regcase</refname>
<refpurpose>Make regular expression for case insensitive match</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>string</type><methodname>sql_regcase</methodname>
<methodparam><type>string</type><parameter>string</parameter></methodparam>
</methodsynopsis>
<para>
Creates a regular expression for a case insensitive match.
</para>
&warn.deprecated.function-5-3-0.removed-6-0-0;
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>string</parameter></term>
<listitem>
<para>
The input string.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns a valid regular expression which will match
<parameter>string</parameter>, ignoring case. This expression is
<parameter>string</parameter> with each alphabetic character converted to
a bracket expression; this bracket expression contains that character's
uppercase and lowercase form. Other characters remain unchanged.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>sql_regcase</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
echo sql_regcase("Foo - bar.");
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
[Ff][Oo][Oo] - [Bb][Aa][Rr].
]]>
</screen>
</example>
</para>
<para>
This can be used to achieve case insensitive pattern matching in
products which support only case sensitive regular expressions.
</para>
</refsect1>
<refsect1 role="notes">
&reftitle.notes;
¬e.regex.deprecated;
</refsect1>
</refentry>
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