How can I sort a multi-dimensional array in php

This can easily be done using the function in PHP that is called array_multisort.

Here is an example of this function in action:

<?php

$multiarray = array(array(5,4,3,2,1),array(7,8,2,9,10));

array_multisort($multiarray[0],SORT_ASC);

print_r($multiarray);
?>