Tác dụng của hàm array_fill()
The array_fill() function fills an array with a specified value.
The following table summarizes the technical details of this function.
| Return Value: | Returns the filled array. |
|---|---|
| Changelog: | Since PHP 5.6.0, the count parameter may now be zero. Previously, count was required to be greater than zero. |
| Version: | PHP 4.2.0+ |
Syntax
The basic syntax of the array_fill() function is given with:
array_fill(start_index, count, value);
The following example shows the array_fill() function in action.
Example
Run this code »<?php
// Filling arrays
$array1 = array_fill(1, 5, "apple");
$array2 = array_fill(-2, 6, "banana");
// Printing the arrays
print_r($array1);
print_r($array2);
?>Note: If you specify a negative value for the start_index parameter, the first index of the returned array will be start_index and the following indices will start from zero.
Parameters
The array_fill() function accepts the following parameters.
| Parameter | Description |
|---|---|
| start_index | Required. Specifies the first index of the returned array. |
| count | Required. Specifies the numbers of values to fill. Must be greater than or equal to zero. |
| value | Required. Specifies the value to use for filling the array. |