3v4l.org

run code in 300+ PHP versions simultaneously
<?php num1$ = ord(substr(md5('password'),5,1)); num2$ = ord(substr(md5('password'),10,1)); num3$ = substr(md5('password'), 3, 1); num4$ = (ord('F')*100+ord('K')); ?>
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.28
Parse error: syntax error, unexpected '$' in /in/vO8DU on line 2
Process exited with code 255.
preferences:
194.17 ms | 1395 KiB | 65 Q