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().