asort($array) - sorts an array while maintaining the index association.
This function sorts an array such that array indices maintain their correlation with
the array elements they are associated with. This is used mainly when sorting
associative arrays where the actual element order is significant.
Returns TRUE on success or FALSE on failure.
Example 1. asort() example
<?php
$fruits = array("d" => "lemon", "a" => "orange", "b" => "banana", "c" => "apple");
asort($fruits);
reset($fruits);
while (list($key, $val) = each($fruits)) {
echo "$key = $val\n";
}
?>
This example would display:
c = apple
b = banana
d = lemon
a = orange