3v4l.org

run code in 300+ PHP versions simultaneously
<?php parse_str('paramName1=Hello&paramname2=World&fOo[bAR][BanG]=boom', $_GET); var_export($_GET); echo "\n---\n"; $lower = array_change_key_case($_GET); var_export($lower);
preferences:
25.12 ms | 406 KiB | 5 Q