Collator
PHP Manual

Collator::getSortKey

collator_get_sort_key

Get sorting key for a string

Description

Object oriented style

public string Collator::getSortKey ( string $str )

Procedural style

string collator_get_sort_key ( Collator $coll , string $str )

Return collation key for a string.

Parameters

coll

Collator object.

str

The string to produce the key from.

Return Values

Returns the collation key for the string. Collation keys can be compared directly instead of strings.

Warning

This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE. Please read the section on Booleans for more information. Use the === operator for testing the return value of this function.

Examples

Example #1 collator_get_sort_keyexample

<?php
$s1 = 'Hello';

$coll = collator_create( 'en_US' );
$res  = collator_get_sort_key( $coll, $s1);

echo urlencode($res);
?>

The above example will output:


71%3F%3FE%01%09%01%8F%08%00

See Also

  • collator_sort
  • collator_sort_with_sort_keys