3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php register_shutdown_function(function() { var_dump(debug_backtrace()); }); foo();
based on 6KN1f
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught Error: Call to undefined function foo() in /in/o0Muh:7 Stack trace: #0 {main} thrown in /in/o0Muh on line 7 array(1) { [0]=> array(2) { ["function"]=> string(9) "{closure}" ["args"]=> array(0) { } } }
Process exited with code 255.
Output for hhvm-3.10.0 - 3.12.0
Fatal error: Call to undefined function foo() in /in/o0Muh on line 7 array(1) { [0]=> array(2) { ["function"]=> string(8) "Closure$" ["args"]=> array(0) { } } }
Process exited with code 255.
Output for 5.3.0 - 5.6.28
Fatal error: Call to undefined function foo() in /in/o0Muh on line 7 array(1) { [0]=> array(2) { ["function"]=> string(9) "{closure}" ["args"]=> array(0) { } } }
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/o0Muh on line 3
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 T_FUNCTION, expecting ')' in /in/o0Muh on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/o0Muh on line 3
Process exited with code 255.