3v4l.org

run code in 500+ PHP versions simultaneously
<?php $array = [0, 1, 2, 3]; unset($array[3], $array[2]); $arrayCopy = $array; $arrayCopy[] = 2; assert($arrayCopy === [0, 1, 2]); // this assertion must pass; it doesn't currently $array[] = 2; assert($array === $arrayCopy); // still identical/equal
Output for 7.1.25 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: assert(): assert($arrayCopy === [0, 1, 2]) failed in /in/vDj4c on line 9
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
Fatal error: Uncaught AssertionError: assert($arrayCopy === [0, 1, 2]) in /in/vDj4c:9 Stack trace: #0 /in/vDj4c(9): assert(false, 'assert($arrayCo...') #1 {main} thrown in /in/vDj4c on line 9
preferences:
30.03 ms | 1140 KiB | 9 Q