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<?php #$x = '[^A-Za-z0-9 \r\n@£$¥èéùìòÇØøÅå\x\{0394\}\x\{03A6\}\x\{0393\}\x\{039B\}\x\{03A9\}\x\{03A0\}\x\{03A8\}\x\{03A3\}\x\{0398\}\x\{039E\}ÆæßÉ!"#$%&amp;\'\(\)*+,\-.\/:;\<\>&lt;=&gt;?¡ÄÖÑܧ¿äöñüà^\{\}\\\[~\]|\x\{20AC\}]+'; $x = '[^A-Z]'; $data = 'asdf‘‼asdf'; $tmp = []; $result = mb_ereg($x,$data,$tmp); var_dump($tmp); /* $result = preg_match_all($x,$data,$tmp); var_dump($tmp); $z = $tmp[0][1]; $y = strpos($data,$z); $q = substr($data,$y,3); var_dump($q); */
Output for 7.1.7
array(1) { [0]=> string(1) "a" }