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archived-doc-ru/reference/spl/arrayobject/uasort.xml
2023-03-26 09:49:34 +03:00

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<?xml version="1.0" encoding="utf-8"?>
<!-- EN-Revision: 2226ad08fd93e3979efbba47c5ae3545eec97d25 Maintainer: aur Status: ready -->
<!-- Reviewed: no -->
<refentry xml:id="arrayobject.uasort" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>ArrayObject::uasort</refname>
<refpurpose>Сортировать записи, используя пользовательскую функцию для сравнения элементов и сохраняя при этом связь ключ/значение</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis role="ArrayObject">
<modifier>public</modifier> <type>true</type><methodname>ArrayObject::uasort</methodname>
<methodparam><type>callable</type><parameter>callback</parameter></methodparam>
</methodsynopsis>
<para>
Эта функция сортирует значения с сохранением ключей,
используя пользовательскую функцию сравнения.
</para>
<para>
Функция используется в основном при сортировке ассоциативных массивов,
в которых важен актуальный порядок элементов.
</para>
&note.sort-unstable;
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>callback</parameter></term>
<listitem>
&sort.callback.description;
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
&return.true.always;
</para>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<para>
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
&return.type.true;
</tbody>
</tgroup>
</informaltable>
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>Пример использования <function>ArrayObject::uasort</function></title>
<programlisting role="php">
<![CDATA[
<?php
// Функция сравнения
function cmp($a, $b) {
if ($a == $b) {
return 0;
}
return ($a < $b) ? -1 : 1;
}
// Массив для сортировки
$array = array('a' => 4, 'b' => 8, 'c' => -1, 'd' => -9, 'e' => 2, 'f' => 5, 'g' => 3, 'h' => -4);
$arrayObject = new ArrayObject($array);
print_r($arrayObject);
// Сортировка и вывод массива
$arrayObject->uasort('cmp');
print_r($arrayObject);
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
Array
(
[a] => 4
[b] => 8
[c] => -1
[d] => -9
[e] => 2
[f] => 5
[g] => 3
[h] => -4
)
Array
(
[d] => -9
[h] => -4
[c] => -1
[e] => 2
[g] => 3
[a] => 4
[f] => 5
[b] => 8
)
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><methodname>ArrayObject::asort</methodname></member>
<member><methodname>ArrayObject::ksort</methodname></member>
<member><methodname>ArrayObject::natsort</methodname></member>
<member><methodname>ArrayObject::natcasesort</methodname></member>
<member><methodname>ArrayObject::uksort</methodname></member>
<member><function>uasort</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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sgml-always-quote-attributes:t
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sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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-->