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<?php $a=array('z','Z','ą', 'Ą', 'a', 'o','ó','Ó','ł','Ł','ź','A','Ż','l','ę','L','e','ć','ń','ś'); $a=array_map( function($a){return mb_strtolower($a, 'utf-8');}, $a); $coll = new Collator( 'pl_PL' ); var_export( $a ); $coll->sort( $a ); var_export( $a );
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => 'z', 1 => 'z', 2 => 'ą', 3 => 'ą', 4 => 'a', 5 => 'o', 6 => 'ó', 7 => 'ó', 8 => 'ł', 9 => 'ł', 10 => 'ź', 11 => 'a', 12 => 'ż', 13 => 'l', 14 => 'ę', 15 => 'l', 16 => 'e', 17 => 'ć', 18 => 'ń', 19 => 'ś', )array ( 0 => 'a', 1 => 'a', 2 => 'ą', 3 => 'ą', 4 => 'ć', 5 => 'e', 6 => 'ę', 7 => 'l', 8 => 'l', 9 => 'ł', 10 => 'ł', 11 => 'ń', 12 => 'o', 13 => 'ó', 14 => 'ó', 15 => 'ś', 16 => 'z', 17 => 'z', 18 => 'ź', 19 => 'ż', )

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