3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function rec_func($x) { echo $x; if ($x < 1000) { $x++; rec_func(&$x); } }
Output for 5.4.0 - 5.4.24
Fatal error: Call-time pass-by-reference has been removed in /in/bBJvY on line 6
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Deprecated: Call-time pass-by-reference has been deprecated in /in/bBJvY on line 6