3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $f = function(){ static $run = 0; if ($run) { throw new Exception("I've already been run!"); } $run = 1; echo "I'm running\n"; }; $f(); $f();
Output for 7.0.0 - 7.1.0
I'm running Fatal error: Uncaught Exception: I've already been run! in /in/3sl9T:6 Stack trace: #0 /in/3sl9T(14): {closure}() #1 {main} thrown in /in/3sl9T on line 6
Process exited with code 255.
Output for 5.3.0 - 5.6.28
I'm running Fatal error: Uncaught exception 'Exception' with message 'I've already been run!' in /in/3sl9T:6 Stack trace: #0 /in/3sl9T(14): {closure}() #1 {main} thrown in /in/3sl9T on line 6
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 in /in/3sl9T 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 in /in/3sl9T on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/3sl9T on line 3
Process exited with code 255.