php_asort

<?php

$fruits = array("d" => "lemon", "a" => "orange", "b" => "banana", "c" => "apple");

echo '<pre>';
echo '<em>Unsorted array</em><br>';

var_dump($fruits);

echo '<br>';

asort($fruits);

echo '<em>Sorted array</em><br>';
var_dump($fruits);

 ?>