PHP - Function natsort()


Advertisements


Syntax

natsort ( $array );

Definition and Usage

This function implements a sort algorithm that orders alphanumeric strings in the way a human being would while maintaining key/value associations. This is described as a "natural ordering". An example of the difference between this algorithm and the regular computer string sorting algorithms (used in sort()) can be seen below −

Parameters

Sr.No Parameter & Description
1

array

Required. Specifies an array

Return Value

This function returns TRUE on success, or FALSE on failure.

Example

Try out following example −

<?php
   $array1 = array('IMG0.png', 'img12.png', 'img10.png', 'img2.png', 'img1.png', 'IMG3.png');
   $array2 = $array1;
   
   sort($array1);
   echo "Standard sorting \n";
   print_r($array1);
   
   natsort($array2);
   echo " \n Natural order sorting \n";
   print_r($array2);
?> 

This will produce the following result −

Standard sorting
Array ( [0] => IMG0.png [1] => IMG3.png [2] => img1.png [3] => img10.png [4] => img12.png [5] => img2.png )

Natural order sorting
Array ( [0] => IMG0.png [5] => IMG3.png [4] => img1.png [3] => img2.png [2] => img10.png [1] => img12.png )

php_function_reference.htm

Advertisements