php-doc-en/reference/intl/collator/sort.xml

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<refentry xml:id="collator.sort" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>Collator::sort</refname>
  <refname>collator_sort</refname>
  <refpurpose>Sort array using specified collator</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <para>
   Object oriented style
  </para>
  <methodsynopsis>
   <type>bool</type>
   <methodname>Collator::sort</methodname>
   <methodparam><type>array</type><parameter role="reference">arr</parameter></methodparam>
   <methodparam choice="opt"><type>int</type><parameter>sort_flag</parameter></methodparam>
  </methodsynopsis>
  <para>
   Procedural style
  </para>
  <methodsynopsis>
   <type>bool</type>
   <methodname>collator_sort</methodname>
   <methodparam><type>Collator</type><parameter>coll</parameter></methodparam>
   <methodparam><type>array</type><parameter role="reference">arr</parameter></methodparam>
   <methodparam choice="opt"><type>int</type><parameter>sort_flag</parameter></methodparam>
  </methodsynopsis>
  <para>This function sorts an array according to current locale rules.</para>
  <para>
   Equivalent to standard PHP
   <function>sort</function> .
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>coll</parameter></term>
     <listitem>
      <para>
       <classname>Collator</classname> object.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>arr</parameter></term>
     <listitem>
      <para>
       Array of strings to sort.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>sort_flag</parameter></term>
     <listitem>
      <para>
       Optional sorting type, one of the following:
      </para>
      <para>
       <itemizedlist>
        <listitem>
         <para>
          <constant>Collator::SORT_REGULAR</constant>
          - compare items normally (don't change types)
         </para>
        </listitem>
        <listitem>
         <para>
          <constant>Collator::SORT_NUMERIC</constant>
          - compare items numerically
         </para>
        </listitem>
        <listitem>
         <para>
          <constant>Collator::SORT_STRING</constant>
          - compare items as strings
         </para>
        </listitem>
       </itemizedlist>
       Default sorting type is <constant>Collator::SORT_REGULAR</constant>.
       It is also used if an invalid <parameter>sort_flag</parameter> value has been specified.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>


 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   &return.success;
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>collator_sort</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
$coll = collator_create( 'en_US' );
$arr  = array( 'at', 'às', 'as' );

var_export( $arr );
collator_sort( $coll, $arr );
var_export( $arr );
?>
]]>
    </programlisting>
    &example.outputs;
    <screen>
<![CDATA[
array (
  0 => 'at',
  1 => 'às',
  2 => 'as',
)array (
  0 => 'as',
  1 => 'às',
  2 => 'at',
)
]]>
    </screen>
   </example>
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><link linkend="intl.collator-constants"><classname>Collator</classname> constants</link></member>
    <member><function>collator_asort</function></member>
    <member><function>collator_sort_with_sort_keys</function></member>
   </simplelist>
  </para>
 </refsect1>
</refentry>

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