3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [1,2,3]; foreach ( $array as $k=>&$v ) { $v = get_something_else(); // return 3 4 5 } var_dump($array);
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, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Fatal error: Uncaught Error: Call to undefined function get_something_else() in /in/kFn40:6 Stack trace: #0 {main} thrown in /in/kFn40 on line 6
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Call to undefined function get_something_else() in /in/kFn40 on line 6
Process exited with code 255.
preferences:
242.74 ms | 402 KiB | 331 Q