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<?php preg_match_all('/[\x{0080}-\x{ffff}]/u', 'café åäö', $matches, PREG_OFFSET_CAPTURE); var_dump($matches, unpack('N', mb_convert_encoding('é', 'UCS-4BE', 'UTF-8')));
based on kY6OP
Output for 4.3.5 - 5.2.0, 5.2.2 - 7.2.0
array(1) { [0]=> array(4) { [0]=> array(2) { [0]=> string(2) "é" [1]=> int(3) } [1]=> array(2) { [0]=> string(2) "å" [1]=> int(6) } [2]=> array(2) { [0]=> string(2) "ä" [1]=> int(8) } [3]=> array(2) { [0]=> string(2) "ö" [1]=> int(10) } } } array(1) { [1]=> int(233) }
Output for 5.2.1
array(1) { [0]=> array(4) { [0]=> array(2) { [0]=> string(2) "é" [1]=> int(3) } [1]=> array(2) { [0]=> string(2) "å" [1]=> int(6) } [2]=> array(2) { [0]=> string(2) "ä" [1]=> int(8) } [3]=> array(2) { [0]=> string(2) "ö" [1]=> int(10) } } } array(1) { [1]=> int(-2147483415) }
Output for 4.3.3 - 4.3.4
array(1) { [0]=> array(4) { [0]=> array(2) { [0]=> string(2) "é" [1]=> int(3) } [1]=> array(2) { [0]=> string(2) "å" [1]=> int(6) } [2]=> array(2) { [0]=> string(2) "ä" [1]=> int(8) } [3]=> array(2) { [0]=> string(2) "ö" [1]=> int(10) } } } array(1) { [""]=> int(233) }
Output for 4.3.0 - 4.3.2
Warning: Wrong value for parameter 4 in call to preg_match_all() in /in/cIW6E on line 4 NULL array(1) { [""]=> int(233) }