PHP array_pad () function
Examples
Back five elements, and "blue" values into an array of new elements:
<?php
$a=array("red","green");
print_r(array_pad($a,5,"blue"));
?>
$a=array("red","green");
print_r(array_pad($a,5,"blue"));
?>
Running instance »
Definition and Usage
array_pad () function element with the specified value of a specified number of insert into the array.
Tip: If you set the size parameter is negative, the function will insert a new element before the original array (see example below).
Note: If thesize argument is less than the length of the original array, the function does not remove any elements.
grammar
array_pad( array,size,value )
| 参数 | 描述 |
|---|---|
| array | 必需。规定数组。 |
| size | 必需。规定从函数返回的数组元素个数。 |
| value | 必需。规定从函数返回的数组中新元素的值。 |
technical details
| return value: | It returns an array with the new elements. |
|---|---|
| PHP version: | 4+ |
More examples
Example 1
Negative values of size parameters:
<?php
$a=array("red","green");
print_r(array_pad($a,-5,"blue"));
?>
$a=array("red","green");
print_r(array_pad($a,-5,"blue"));
?>
Running instance »
Complete PHP Array Reference