The array_pad method can be used to pad elements to the array until the array reaches a specific length.
array_pad(array $array, int $length, mixed $value): array
array: Input arraylength: Output size of the arrayvalue: Value to be paddedIf the argument length is positive, then the elements are padded at the end. If it is negative, then the elements are padded at the beginning.
If the value of the argument length is less than or equal to the length of the array, then the padding will not happen.
The array_pad method pads elements and returns a new array. The original array remains unaffected.
If the array has numeric keys, then it will be reassigned based on the padding element position.
<?php$numbers = [1,2];printArray($numbers);// adding 0 at the end$result = array_pad($numbers, 4, 0);echo "Padding length: 4 & Padding value: 0 \n";printArray($result);// adding 0 at the beginning$result = array_pad($numbers, -4, 0);echo "Padding length: -4 & Padding value: 0 \n";printArray($result);// no padding$result = array_pad($numbers, 2, 0);echo "Padding length: 2 & Padding value: 0 \n";printArray($result);function printArray($array){echo "The array is \n";print_r($array);echo "\n";}?>
In the code above:
We create a numbers array.
We create a printArray function to print the array.
We use the array_pad method to pad elements and make the array a specific length.