3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo PCRE_VERSION; preg_replace('#\[((br|hr|clear|col)[^]]*)]#is', '[$1]*[/$2]', file_get_contents('https://gist.githubusercontent.com/codemasher/c310a48d46974d003b5f/raw/96c849c0b9cb43bb0f82497a08b970db734c7e81/bcode.txt'));

preferences:
44.85 ms | 402 KiB | 5 Q