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natcasesort

(PHP 4, PHP 5)

natcasesortSort an array using a case insensitive "natural order" algorithm

Description

bool natcasesort ( array &$array )

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

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".

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Parameters

array

The input array.

Return Values

Returns TRUE on success or FALSE on failure.

Examples

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

  • natsort() - Sort an array using a "natural order" algorithm
  • The comparison of array sorting functions
  • strnatcmp() - String comparisons using a "natural order" algorithm
  • strnatcasecmp() - Case insensitive string comparisons using a "natural order" algorithm

 
 

Execute natcasesort( &$array1 );

$array1 =


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