(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0)
Collator::sortWithSortKeys -- collator_sort_with_sort_keys — Sort array using specified collator and sort keys
Object oriented style
public Collator::sortWithSortKeys ( array &$arr ) : bool
Procedural style
collator_sort_with_sort_keys ( Collator $coll , array &$arr ) : bool
Similar to collator_sort() but uses ICU sorting keys produced by ucol_getSortKey() to gain more speed on large arrays.
coll
Collator object.
arr
Array of strings to sort
Returns true on success or false on failure.
Example #1 collator_sort_with_sort_keys() example
<?php $arr = array( 'Köpfe', 'Kypper', 'Kopfe' ); $coll = collator_create( 'sv' ); collator_sort_with_sort_keys( $coll, $arr ); var_export( $arr ); ?>
The above example will output:
array ( 0 => 'Kopfe', 1 => 'Kypper', 2 => 'Köpfe', )
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https://www.php.net/manual/en/collator.sortwithsortkeys.php