Online PHP editor | output for lCS0n

@ 2022-09-17T22:45:38Z

<?php

$array = [
    0 => 'Apple',
    2 => 'Orange',
    5 => 'Pear',
    8 => 'Pear'
];

var_export(
    array_fill(0, array_key_last($array), null)
    + $array
);

echo "\n---\n";

var_export(
    $array +
    array_fill(0, array_key_last($array), null)
);

echo "\n---\n";

var_export(
    array_merge(
        array_fill(0, array_key_last($array), null),
        $array
    )
);

Output for 7.4.0 - 7.4.33, 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 - 8.4.18, 8.5.0 - 8.5.3: array ( 0 => NULL, 1 => NULL, 2 => NULL, 3 => NULL, 4 => NULL, 5 => NULL, 6 => NULL, 7 => NULL, 8 => 'Pear', ) --- array ( 0 => 'Apple', 2 => 'Orange', 5 => 'Pear', 8 => 'Pear', 1 => NULL, 3 => NULL, 4 => NULL, 6 => NULL, 7 => NULL, ) --- array ( 0 => NULL, 1 => NULL, 2 => NULL, 3 => NULL, 4 => NULL, 5 => NULL, 6 => NULL, 7 => NULL, 8 => 'Apple', 9 => 'Orange', 10 => 'Pear', 11 => 'Pear', )

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