How to sort an array in array by a specific key in PHP [duplicate]

Question

Possible Duplicate:
Sorting an associative array in PHP
How to sort a multidimensional array by a certain key?

I would like to know how can I sort an array in array by a specific key.

For example:

$array = array( 0 => array("id"=>25), 1 => array("id"=>15) , 2 => array("id"=>19) );

now I want to sort the array by the key "id", i'm expecting this result:

$array = array( 0 => array("id"=>15), 1 => array("id"=>19) , 2 => array("id"=>25) );

Anybody can help ?

Thanks

A similar question has already been posed and answered: Sorting an associative array in PHP. Please use the search function next time. See the FAQ. — hakre
– hakre, Commented Oct 6, 2011 at 16:31

OpenGG · Accepted Answer · 2011-10-06 16:25:36Z

0

Hope this may work.

function cmp($a, $b){
    return $a['id'] - $b['id'];
}
usort($array, 'cmp');

answered Oct 6, 2011 at 16:25

OpenGG

4,5902 gold badges26 silver badges32 bronze badges

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

3 Comments

Why -1 me? This is working actually. T.T

the answer to the question is to link the duplicate and vote for close. Probably because of that.

@hakre oh, sorry I didn't see it :)