strnatcasecmp.xml

<?xml version="1.0" encoding="utf-8"?>
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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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