<?php $str = '☀+☁️+❄️'; $m = array(); preg_match_all('#(?:(?!e|ln|(?<=l|si|ta)n|pi|(?<=p)i|abs|(?<=a)bs|(?<=ab|co)s|pow|(?<=p)ow|(?<=po)w|a?(?:sin|cos|tan)|(?<=s)in|(?<=c)os|(?<=t)an)[^0-9-+*/()x])+#', $str, $m); print_r($m);
You have javascript disabled. You will not be able to edit any code.
Value for `_results` contains invalid data `array`