3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [1,2,3,4]; $b = [1,2,3,4, 55 => 5]; unset($b[55]); $a[] = 5; $b[] = 5; var_dump($a, $b); assert($a === $b);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array(5) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) [4]=> int(5) } array(5) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) [56]=> int(5) } Fatal error: Uncaught AssertionError: assert($a === $b) in /in/hu7vc:9 Stack trace: #0 /in/hu7vc(9): assert(false, 'assert($a === $...') #1 {main} thrown in /in/hu7vc on line 9
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
array(5) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) [4]=> int(5) } array(5) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) [56]=> int(5) } Warning: assert(): assert($a === $b) failed in /in/hu7vc on line 9
Output for 5.6.0 - 5.6.29
array(5) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) [4]=> int(5) } array(5) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) [56]=> int(5) } Warning: assert(): Assertion failed in /in/hu7vc on line 9

preferences:
106 ms | 1617 KiB | 4 Q