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<refentry xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://docbook.org/ns/docbook" xml:id="function.strnatcasecmp">

<refnamediv>

<refname>strnatcasecmp</refname>

<refpurpose>Case insensitive string comparisons using a "natural order" algorithm</refpurpose>

</refnamediv>

<refsect1 role="description">

&reftitle.description;

<methodsynopsis>

<type>int</type><methodname>strnatcasecmp</methodname>

<methodparam><type>string</type><parameter>string1</parameter></methodparam>

<methodparam><type>string</type><parameter>string2</parameter></methodparam>

</methodsynopsis>

<para>

This function implements a comparison algorithm that orders alphanumeric

strings in the way a human being would. The behaviour of this function is

similar to <function>strnatcmp</function>, except that the comparison is

not case sensitive. For more information see: Martin Pool's <link

xlink:href="&url.strnatcmp;">Natural Order String Comparison</link> page.

</para>

</refsect1>

<refsect1 role="parameters">

&reftitle.parameters;

<para>

<variablelist>

<varlistentry>

<term><parameter>string1</parameter></term>

<listitem>

<para>

The first string.

</para>

</listitem>

</varlistentry>

<varlistentry>

<term><parameter>string2</parameter></term>

<listitem>

<para>

The second string.

</para>

</listitem>

</varlistentry>

</variablelist>

</para>

</refsect1>

<refsect1 role="returnvalues">

&reftitle.returnvalues;

&strings.comparison.return;

</refsect1>

<refsect1 role="changelog">

&reftitle.changelog;

<informaltable>

<tgroup cols="2">

<thead>

<row>

<entry>&Version;</entry>

<entry>&Description;</entry>

</row>

</thead>

<tbody>

&standard.changelog.binary-safe-string-comparison;

</tbody>

</tgroup>

</informaltable>

</refsect1>

<refsect1 role="examples">

&reftitle.examples;

<para>

<example>

<title><function>strnatcasecmp</function> example</title>

<programlisting role="php">

<![CDATA[

<?php

var_dump(strnatcasecmp('Apple', 'Banana'));

var_dump(strnatcasecmp('Banana', 'Apple'));

var_dump(strnatcasecmp('apple', 'Apple'));

?>

]]>

</programlisting>

&example.outputs;

<screen>

<![CDATA[

int(-1)

int(1)

int(0)

]]>

</screen>

</example>

</para>

</refsect1>

<refsect1 role="seealso">

&reftitle.seealso;

<para>

<simplelist>

<member><function>preg_match</function></member>

<member><function>strcmp</function></member>

<member><function>strcasecmp</function></member>

<member><function>substr</function></member>

<member><function>stristr</function></member>

<member><function>strncasecmp</function></member>

<member><function>strncmp</function></member>

<member><function>strstr</function></member>

<member><function>setlocale</function></member>

</simplelist>

</para>

</refsect1>

</refentry>

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