3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(); for($i=0; $i < 10000; ++$i) { array_push(a, "10"); }
Output for 8.1.23 - 8.1.28, 8.2.10 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Undefined constant "a" in /in/DC8vj:6 Stack trace: #0 {main} thrown in /in/DC8vj on line 6
Process exited with code 255.
Output for 5.3.0 - 5.3.19, 5.4.0 - 5.4.9
Fatal error: Only variables can be passed by reference in DC8vj on line 6
Process exited with code 255.
preferences:
78.53 ms | 402 KiB | 57 Q