PHP natcasesort() Function
Definition and Usage
The natcasesort() function sorts the array using the "natural sorting" algorithm. Key values retain their original key names.
In natural sorting algorithms, the number 2 is less than the number 10. In computer sorting algorithms, 10 is less than 2, because the first digit of "10" is less than 2.
This function is case-insensitive.
If successful, the function returns TRUE, and if failed returns FALSE.
Syntax
natcasesort(array)
| Parameter | Description |
|---|---|
| array | Required. Specifies the array to be sorted. |
Example
<?php
$temp_files = array("temp15.txt","Temp10.txt",
"temp1.txt","Temp22.txt","temp2.txt");
natsort($temp_files);
echo "Natural sorting:\n";
print_r($temp_files);
echo "<br />";
natcasesort($temp_files);
echo "Case-insensitive natural sorting:\n";
print_r($temp_files);
?>
The output of the above code:
Natural sorting: Array ( [0] => Temp10.txt [1] => Temp22.txt [2] => temp1.txt [4] => temp2.txt [3] => temp15.txt ) Case-insensitive natural order: Array ( [2] => temp1.txt [4] => temp2.txt [0] => Temp10.txt [3] => temp15.txt [1] => Temp22.txt )
