array_flip()例子

<?php
$trans = array("a" => 1, "b" => 1, "c" => 2);
$trans = array_flip($trans);
print_r($trans);
?>

答案：

Array(    [1] => b    [2] => c)

array_values() 例子

<?php
$array = array("size" => "XL", "color" => "gold");
print_r(array_values($array));
?>

答案：

Array
(
    [0] => XL
    [1] => gold
)

Array函数