3v4l.org

run code in 200+ php & hhvm versions
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<?php $url = '/download/asd'; $arrMatch = array(); if (!preg_match('/^\/(\w+)\/.*$/', $url, $arrMatch)) { echo $arrMatch[1]; }else{ echo 'NOK'; }
Output for 4.3.0 - 7.2.0
NOK