PHP array_fill() Function: Fill an Array with a Specified Value

The array_fill() function in PHP fills an array with a given value for a specified number of entries, using the $start_index parameter to set the first index of the returned array.

Syntax

array_fill(int $start_index, int $num, mixed $value)

Parameters

start_index : The index of the first element in the returned array. If negative, the first index will be the negative value and subsequent indexes start from 0.

num : The number of elements to insert; must be greater than 0.

value : The value used to fill the array.

Return value

Returns the array after it has been filled with the specified value.

Example

<?php
$a = array_fill(5, 6, 'banana');
$b = array_fill(-2, 4, 'pear');
print_r($a);
print_r($b);
?>

Output

Array
(
    [5] => banana
    [6] => banana
    [7] => banana
    [8] => banana
    [9] => banana
    [10] => banana
)
Array
(
    [-2] => pear
    [-1] => pear
    [0] => pear
    [1] => pear
)