3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function test() : string { return null; } test();
based on KHMe9
Output for 7.0.0 - 7.3.1
Fatal error: Uncaught TypeError: Return value of test() must be of the type string, null returned in /in/TD9nj:4 Stack trace: #0 /in/TD9nj(7): test() #1 {main} thrown in /in/TD9nj on line 4
Process exited with code 255.
Output for hhvm-3.22.0
Fatal error: Uncaught TypeError: Value returned from function test() must be of type string, null given in /in/TD9nj:-1 Stack trace: #0 /in/TD9nj(-1): test() #1 {main}
Process exited with code 255.
Output for hhvm-3.11.1 - 3.21.3
Fatal error: Uncaught TypeError: Value returned from function test() must be of type string, null given in /in/TD9nj:4 Stack trace: #0 /in/TD9nj(7): test() #1 {main}
Process exited with code 255.
Output for hhvm-3.10.1
Fatal error: Syntax only allowed in Hack files (<?hh) or with -v Eval.EnableHipHopSyntax=true in /in/TD9nj on line 3
Process exited with code 255.
Output for 5.4.0 - 5.6.38
Parse error: syntax error, unexpected ':', expecting '{' in /in/TD9nj on line 3
Process exited with code 255.