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@ 2014-10-29T09:39:17Z

<?
echo preg_match('~[0-9a-zA-ZäöüÄÖÜß&]{2}~', '&c-');
?>

Output
Performance
VLD
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preg_match: documentation ( source)

preferences:dark modelive preview

32.05 ms | 402 KiB | 5 Q