PHP 8 reference · Array Functions

PHP array_pad() Function

Pad an array to a given length with a value, adding at the end (positive length) or the start (negative).

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Syntax

array_pad(array $array, int $length, mixed $value): array

Parameter	Description
`array`	The input array.
`length`	The new size; negative pads at the start.
`value`	The value to add.

The padded array.

Pad at the end or startTry it yourself

<?php
echo implode(",", array_pad([1, 2], 5, 0)), "\n";
echo implode(",", array_pad([1, 2], -5, 0)), "\n";

Output

1,2,0,0,0
0,0,0,1,2

Default missing partsTry it yourself

<?php
[$h, $m, $s] = array_pad(explode(":", "14:30"), 3, "00");
echo "$h:$m:$s\n";

Output

14:30:00

Version	Change
PHP 4.0	Added
PHP 8.3	No longer limited to adding 1,048,576 elements at a time.

array_fill() · Create an array filled with the same value, given a start index and a count.
str_pad() · Pad a string to a given length with spaces or another string, on the right, left or both sides.
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