sort Array in specific filename order

Question

How do I sort the following data in the order I want it?

The array:

array(4)
{ 
[21]=> string(7) "2-2.pdf" 
[22]=> string(7) "2-3.pdf"
[23]=> string(7) "2-4.pdf" 
[24]=> string(5) "2.pdf" 
}

I want this sort:

2.pdf
2-2.pdf
2-3.pdf
2-4.pdf

And what have you tried to achieve that? Eg, you can define your own comparison function via usort() — kero
– kero, Commented Oct 12, 2014 at 10:43
This might help you. <?php $check_array = array('2-2.pdf','2.pdf','2-3.pdf','2-4.pdf'); function cmp($a, $b) { return strcmp($a, $b); } usort($check_array, "cmp"); echo "<pre/>"; print_r($check_array); ?> Just the 2.pdf is the last element of final result — Mobasher Fasihy
– Mobasher Fasihy, Commented Oct 12, 2014 at 11:08

Kevin · Accepted Answer · 2014-10-12 11:12:21Z

2

Yes you could use usort in this case:

$array = [21=> "2-2.pdf", 22=> "2-3.pdf", 23=> "2-4.pdf",24=> "2.pdf", ];
usort($array, function($a, $b){
    $a = str_replace('-', '', $a);
    $b = str_replace('-', '', $b);
    return $a - $b;
});

answered Oct 12, 2014 at 11:12

Kevin

41.9k12 gold badges57 silver badges72 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Mobasher Fasihy · Accepted Answer · 2014-10-12 11:18:13Z

1

You can do like this:

<?php
   $check_array = array('2-2.pdf','2.pdf','2-3.pdf','2-4.pdf');

   function cmp($a, $b)
   {
       $a = preg_replace('/-/','',$a);
       $b = preg_replace('/-/','',$b);
       return strcmp($a, $b);
   }


   usort($check_array, "cmp");


   echo "<pre/>"; print_r($check_array);
 ?>

And the result is:

<?php Array ( [0] => 2.pdf [1] => 2-2.pdf [2] => 2-3.pdf [3] => 2-4.pdf ) ?>

answered Oct 12, 2014 at 11:18

Mobasher Fasihy

1,0612 gold badges10 silver badges19 bronze badges

Collectives™ on Stack Overflow

sort Array in specific filename order

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related