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run code in 200+ php & hhvm versions
Bugs & Features
<?php function clean($string) { return preg_replace('/[^A-Za-z0-9.\/\-_~]/', '', $string); } function clean2($string) { return preg_replace('#\p{C}+|^\./#u', '', $string); } $toClean = ' abcDEF123./-_~àéèùïî% *\@& '; var_dump(clean($toClean)); var_dump(clean2($toClean));
based on 1Yd3R
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.6
string(14) "abcDEF123./-_~" string(34) " abcDEF123./-_~àéèùïî% *\@& "