3v4l.org

run code in 300+ PHP versions simultaneously
<?PHP $s1 = 'abcd'; $s2 = 'abcd'; //require $1 != $2 echo md5($s1); echo '||||'; echo hash('md5',$s2); //require 1 === 2 echo hash('sha512',$s1,true); echo hash('sha512',$s2,true); ?>

preferences:
45.22 ms | 402 KiB | 5 Q