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<?php $arr = ['a', 'b', 'c', 'd']; array_splice($arr, 'b'); var_dump($arr);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: array_splice(): Argument #2 ($offset) must be of type int, string given in /in/oXrE6:4 Stack trace: #0 /in/oXrE6(4): array_splice(Array, 'b') #1 {main} thrown in /in/oXrE6 on line 4
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: array_splice() expects parameter 2 to be int, string given in /in/oXrE6 on line 4 array(4) { [0]=> string(1) "a" [1]=> string(1) "b" [2]=> string(1) "c" [3]=> string(1) "d" }
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33
Warning: array_splice() expects parameter 2 to be integer, string given in /in/oXrE6 on line 4 array(4) { [0]=> string(1) "a" [1]=> string(1) "b" [2]=> string(1) "c" [3]=> string(1) "d" }
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Warning: array_splice() expects parameter 2 to be long, string given in /in/oXrE6 on line 4 array(4) { [0]=> string(1) "a" [1]=> string(1) "b" [2]=> string(1) "c" [3]=> string(1) "d" }

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