php - array_pad

Description

array array_pad ( array $input, int $pad_size, mixed $pad_value )
array_pad() returns a copy of the input padded to size specified by pad_size with value pad_value. If pad_size is positive then the array is padded on the right, if it's negative then on the left. If the absolute value of pad_size is less than or equal to the length of the input then no padding takes place. It is possible to add most 1048576 elements at a time.

Parameters

input

Initial array of values to pad.

pad_size

New size of the array.

pad_value

Value to pad if input is less than pad_size.

Return Values

Returns a copy of the input padded to size specified by pad_size with value pad_value. If pad_size is positive then the array is padded on the right, if it's negative then on the left. If the absolute value of pad_size is less than or equal to the length of the input then no padding takes place.

Examples

Example 263. array_pad() example

<?php
$input = array(12, 10, 9);
$result = array_pad($input, 5, 0);// result is array(12, 10, 9, 0, 0)
$result = array_pad($input, -7, -1);// result is array(-1, -1, -1, -1, 12, 10, 9)
$result = array_pad($input, 2, "noop");// not padded
?>