Tác dụng của hàm natcasesort()
The natcasesort()
function sorts an array using a case-insensitive "natural order" algorithm.
The keys are preserved, i.e. the key-to-value mapping will remain unchanged by the sort operation.
The following table summarizes the technical details of this function.
Return Value: | Returns TRUE on success or FALSE on failure. |
---|---|
Version: | PHP 4+ |
Syntax
The basic syntax of the natcasesort()
function is given with:
The following example shows the natcasesort()
function in action.
Example
Run this code »<?php
// Sample array
$images = array("IMG5.png", "img10.png", "IMG2.png", "img1.png");
// Standard sorting
sort($images);
print_r($images);
// Natural order sorting
natcasesort($images);
print_r($images);
?>
Tip: The natcasesort()
function implements a sort algorithm that orders the alphanumeric strings in the way a human being would. This is described as a "natural ordering".
Parameters
The natcasesort()
function accepts the following parameters.
Parameter | Description |
---|---|
array | Required. Specifies the array to be sorted. |