3v4l.org

run code in 300+ PHP versions simultaneously
<?php $f = function f(&$a) {}; $f("foo");
Output for 5.4.0 - 5.4.24
Parse error: syntax error, unexpected 'f' (T_STRING), expecting '(' in /in/JCCI2 on line 2
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_STRING, expecting '(' in /in/JCCI2 on line 2
Process exited with code 255.
preferences:
172.56 ms | 1395 KiB | 61 Q