3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x=array(1,2,3,4,5); print_r($x); $y = $x[2]; print_r($y); $y[] = $x[3]; print_r($y); ?>
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
Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 ) 3 Fatal error: Uncaught Error: Cannot use a scalar value as an array in /in/s0WRT:6 Stack trace: #0 {main} thrown in /in/s0WRT on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 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
Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 ) 3 Warning: Cannot use a scalar value as an array in /in/s0WRT on line 6 3
preferences:
303.75 ms | 405 KiB | 460 Q