php arrays sort

I have 2 arrays like th开发者_StackOverflow中文版ose:

$a = array(152,32,113,47,53);

$b = array("a","w","lk","qw","ol");

I will sort $a by using asort() and I want to auto-sort the second array $b likewise $a.

How to do I?

You can use array_multisort.

http://us2.php.net/manual/en/function.array-multisort.php