PHP range() Function
Example
Create an array containing a range of elements from "0" to "5":
<?php
$number = range(0,5);
print_r ($number);
?>
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Definition and Usage
The range() function creates an array containing a range of elements.
This function returns an array of elements from low to high.
Note: If the low parameter is higher than the high parameter, the range array will be from high to low.
Syntax
range(low,high,step)
| Parameter | Description |
|---|---|
| low | Required. Specifies the lowest value of the array |
| high | Required. Specifies the highest value of the array |
| step | Optional. Specifies the increment used in the range. Default is 1 |
Technical Details
| Return Value: | Returns an array of elements from low to high |
|---|---|
| PHP Version: | 4+ |
| Changelog: | The step parameter was added in PHP 5.0. In PHP versions 4.1.0 through 4.3.2, this function sees numeric strings as strings and not integers. The numeric strings will be used for character sequences, e.g., "5252" is treated as "5". Support for character sequences and decrementing arrays was added in PHP 4.1.0. Character sequence values are limited to a length of one. If the length is higher than one, only the first character is used. Before this version, range() only generated incrementing integer arrays. |
More Examples
Example 1
Return an array of elements from "0" to "50" and increment by 10.
<?php
$number = range(0,50,10);
print_r ($number);
?>
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Example 2
Using letters - return an array of elements from "a" to "d"
<?php
$letter = range("a","d");
print_r ($letter);
?>
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PHP Array Reference
