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PHP | natsort() Function

PHP natsort() Function

Hello folks! welcome back to a new section of our tutorial on PHP. In this tutorial guide, we are going to be studying about the PHP natsort() Function.

The built-in PHP natsort() function is used to implement a sort algorithm that orders alphanumeric strings in the manner that a human being would while maintaining the key/value associations. This is described as a "natural ordering".


Following below is the syntax to use this function -

natsort ( $array );

Parameter Details

Sr.NoParameter & Description


It specifies an array

Return Value

This function returns TRUE on success, or False on failure.


Try out the below example -

   $input1 = array('click.txt', 'img12.txt', 'img10.txt', 'img2.txt', 'img1.txt', 'IMG3.txt');
   $input2 = $input1;  
   echo " \n Natural order sorting \n";


When the above code is executed, it will produce the following result -

Natural order sorting
Array ( [0] => click.txt [5] => IMG3.txt [4] => img1.txt [3] => img2.txt [2] => img10.txt [1] => img12.txt )

Alright guys! This is where we are going to be rounding up for this tutorial post. In our next tutorial, we are going to be discussing about the PHP next() Function.

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