3v4l.org

run code in 300+ PHP versions simultaneously
<?php function callMe(callable $fun) { $fun(); } callMe(function() { echo "yay"; }); callMe('lolno');
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
yay Fatal error: Uncaught TypeError: callMe(): Argument #1 ($fun) must be of type callable, string given, called in /in/RtT9Y on line 6 and defined in /in/RtT9Y:3 Stack trace: #0 /in/RtT9Y(6): callMe('lolno') #1 {main} thrown in /in/RtT9Y on line 3
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
yay Fatal error: Uncaught TypeError: Argument 1 passed to callMe() must be callable, string given, called in /in/RtT9Y on line 6 and defined in /in/RtT9Y:3 Stack trace: #0 /in/RtT9Y(6): callMe('lolno') #1 {main} thrown in /in/RtT9Y on line 3
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
yay Catchable fatal error: Argument 1 passed to callMe() must be callable, string given, called in /in/RtT9Y on line 6 and defined in /in/RtT9Y on line 3
Process exited with code 255.

preferences:
254.07 ms | 402 KiB | 376 Q