Sort an array by key in PHP

PHP Add comments

Jul 112010

Answer:

Assume you have an array in PHP as following,

$a = array (
    "orange" => 3,
    "mango" => 2,
    "apple" => 1,
);

You can sort the array by the key, with the ksort function

ksort($a);

Then the array become:

(
    "apple" => 1,
    "mango" => 2,
    "orange" => 3,
);