3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr1= []; $arr2 = []; $arr1[] = "Hello"; $arr1[] = "This"; print_r($arr1); $tester = ["Hello", "This"]; foreach ($tester as $key) { $arr2[] = $key; } print_r($arr2);
Output for 7.1.25 - 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 - 8.3.6
Array ( [0] => Hello [1] => This ) Array ( [0] => Hello [1] => This )
preferences:
157.69 ms | 403 KiB | 183 Q