# PHP natsort() Function

PHP Array Reference

## Example

Sort an array:

<?php
$temp_files = array("temp15.txt","temp10.txt",
"temp1.txt","temp22.txt","temp2.txt");
sort($temp_files);
echo "Standard sorting: ";
print_r($temp_files);
echo "<br>";
natsort($temp_files);
echo "Natural order: ";
print_r($temp_files);
?>
Run example »

## Definition and Usage

The natsort() function sorts an array by using a "natural order" algorithm. The values keep their original keys.

In a natural algorithm, the number 2 is less than the number 10. In computer sorting, 10 is less than 2, because the first number in "10" is less than 2.

## Syntax

natsort(array)

Parameter | Description
--- | ---
array | Required. Specifies the array to sort

## Technical Details

Return Value: | Returns TRUE on success, or FALSE on failure.
PHP Version: | 4+
Changelog: | As of PHP 5.2.10, Zero padded numeric strings (e.g., '00006') now ignore the 0 padding

PHP Array Reference

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