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<?php $a = array(1, 2, 3, 4); //$b = array_merge(array_slice($a, 0, 2), array(5), array_slice($a, 2)); // $b = array(1, 2, 5, 3, 4) var_export( array_slice($a, 0, 2) + array(5) + array_slice($a, 2) );
Output for 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
array ( 0 => 1, 1 => 2, )

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77.37 ms | 406 KiB | 5 Q