3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function a($a = 1 & 5) { echo $a; } a();
Output for 5.6.0 - 7.1.0
1
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.5.38
Parse error: syntax error, unexpected '&', expecting ')' in /in/Rnkth on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '&', expecting ')' in /in/Rnkth on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/Rnkth on line 2
Process exited with code 255.