3v4l.org

run code in 500+ PHP versions simultaneously
<?php $array = [1, 2, 3, 4]; $index = 2; $value = 9; $remains = array_splice($array, max(0, $index - 1)); var_export( array_merge( $array, [$value], $remains ) );
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
array ( 0 => 1, 1 => 9, 2 => 2, 3 => 3, 4 => 4, )
preferences:
84.25 ms | 1127 KiB | 4 Q