(PHP 5 >= 5.3.0, PECL intl >= 1.0.0)
Collator::sortWithSortKeys -- collator_sort_with_sort_keys — Sort array using specified collator and sort keys
Object oriented style
Procedural style
Similar to collator_sort() but uses ICU sorting keys produced by ucol_getSortKey() to gain more speed on large arrays.
如果成功则返回 TRUE，失败则返回 FALSE。
Example #1 collator_sort_with_sort_keys() example
<?php
$arr = array( 'K?pfe', 'Kypper', 'Kopfe' );
$coll = collator_create( 'sv' );
collator_sort_with_sort_keys( $coll, $arr );
var_export( $arr );
?>
上例将输出：
array ( 0 => 'Kopfe', 1 => 'Kypper', 2 => 'K?pfe', )