PHP » Arrays » array_pad()
- Syntax:
- array array_pad (array in_array, int pad_size, mixed pad_value)
- in_array
- The array to be padded.
- pad_size
- The size of the new padded array. If a negative size is specified, the array will be padded on the left.
- pad_value
- Value to pad the array with.
Pads an array with a value.
The array_pad() function extends an array to a size by adding the same value a number of times to either end of the array. The function returns a padded copy of the input array.
Examples
Code:
<?php
// 2, 3, 4, 5, 6, 7, 8
$array1 = range(2, 8);
// add some 9's to the end
$padded = array_pad($array1, sizeof($array1) + 4, 9);
// add some 1's to the beginning
$padded = array_pad($padded, -1 * (sizeof($padded) + 4), 1);
foreach ($padded as $element) {
print "$element ";
}
?>Output:
1 1 1 1 2 3 4 5 6 7 8 9 9 9 9Explanation:
The range() function is used to create an array. Then the array_pad() function is used to pad the array on both sides with 1's and 9's.
See Also:
