Arrays
PHP Manual

natcasesort

(PHP 4, PHP 5)

natcasesort — Sort an array using a case insensitive "natural order" algorithm

Description

bool natcasesort ( array &$array )

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".

Returns TRUE on success or FALSE on failure.

natcasesort() is a case insensitive version of natsort().

Example#1 natcasesort() example

<?php
$array1 
$array2 = array('IMG0.png''img12.png''img10.png''img2.png''img1.png''IMG3.png');

sort($array1);
echo 
"Standard sorting\n";
print_r($array1);

natcasesort($array2);
echo 
"\nNatural order sorting (case-insensitive)\n";
print_r($array2);
?>

The above example will output:

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

For more information see: Martin Pool's » Natural Order String Comparison page.

See also sort(), natsort(), strnatcmp(), and strnatcasecmp().


Arrays
PHP Manual