3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function a() { echo "called\n"; return 'aaa'; } class A {} isset(strlen($a)); isset($a); isset($a[0]); isset(A::$x); isset($a->found);
based on 6hDA5
Output for 5.0.0 - 5.4.35
Fatal error: Can't use function return value in write context in /in/Bt3eM on line 11
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_VARIABLE or '$' in /in/Bt3eM on line 11
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_VARIABLE or '$' in /in/Bt3eM on line 11
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/Bt3eM on line 11
Process exited with code 255.