Working with assosiative arrays

Example 1:
    $fruits = array("lemon", "orange", "banana", "apple");
    sort($fruits);
    foreach ($fruits as $key => $val) {
        echo "fruits[" . $key . "] = " . $val . "\n";
    } 

Example 2:
    while (list($key,$value) = each($fruitArray)) {
        echo "$key : $value";
    }