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

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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.lcfirst">
 <refnamediv>
  <refname>lcfirst</refname>
  <refpurpose>Make a string's first character lowercase</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>string</type><methodname>lcfirst</methodname>
   <methodparam><type>string</type><parameter>str</parameter></methodparam>
  </methodsynopsis>
  <para>
   Returns a string with the first character of
   <parameter>str</parameter> , lowercased if that character is
   alphabetic.
  </para>
  <para>
   Note that 'alphabetic' is determined by the current locale. For
   instance, in the default "C" locale characters such as umlaut-a
   (&auml;) will not be converted.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>str</parameter></term>
     <listitem>
      <para>
       The input string.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns the resulting string.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>lcfirst</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
$foo = 'HelloWorld';
$foo = lcfirst($foo);             // helloWorld

$bar = 'HELLO WORLD!';
$bar = lcfirst($bar);             // hELLO WORLD!
$bar = lcfirst(strtoupper($bar)); // hELLO WORLD!
?>
]]>
    </programlisting>
   </example>   
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>ucfirst</function></member>
    <member><function>strtolower</function></member>
    <member><function>strtoupper</function></member>
    <member><function>ucwords</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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