3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array( '' => 'test', '1' => 'test1', '5' => 'test5', '2' => 'test2', '10' => 'test10' ); var_dump($array);
Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.30, 8.0.0 - 8.0.20, 8.1.0 - 8.1.7
array(5) { [""]=> string(4) "test" [1]=> string(5) "test1" [5]=> string(5) "test5" [2]=> string(5) "test2" [10]=> string(6) "test10" }

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