php-doc-en/reference/strings/functions/strcasecmp.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.strcasecmp">
 <refnamediv>
  <refname>strcasecmp</refname>
  <refpurpose>Binary safe case-insensitive string comparison</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>int</type><methodname>strcasecmp</methodname>
   <methodparam><type>string</type><parameter>str1</parameter></methodparam>
   <methodparam><type>string</type><parameter>str2</parameter></methodparam>
  </methodsynopsis>
  <para>
   Binary safe case-insensitive string comparison.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>str1</parameter></term>
     <listitem>
      <para>
       The first string
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>str2</parameter></term>
     <listitem>
      <para>
       The second string
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns &lt; 0 if <parameter>str1</parameter> is less than
   <parameter>str2</parameter>; &gt; 0 if <parameter>str1</parameter>
   is greater than <parameter>str2</parameter>, and 0 if they are
   equal.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>strcasecmp</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
$var1 = "Hello";
$var2 = "hello";
if (strcasecmp($var1, $var2) == 0) {
    echo '$var1 is equal to $var2 in a case-insensitive string comparison';
}
?>
]]>
    </programlisting>
   </example>   
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>strcmp</function></member>
    <member><function>preg_match</function></member>
    <member><function>substr_compare</function></member>
    <member><function>strncasecmp</function></member>
    <member><function>stristr</function></member>
    <member><function>substr</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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