php - How can i delete a item at index X in array?

Possible Duplicate:
How to delete an element from an array in php?

I have a list of things, cars for instance

$cars[0] = "audi";
$cars[1] = "saab";
$cars[2] = "volvo";

$cars[3] = "vw";

How do i delete "volvo" from the list?

Answer

$volvoIndex = array_search('volvo', $cars);
unset($cars[$volvoIndex]);