array_replace和array_replace_recursive区别

array_replace 不会处理二级，只会把VALUE看成一个整体，但array_replace_recursive不会

CODE

$a1=array("a"=>array("red"),"b"=>array("green","blue"),);
$a2=array("a"=>array("yellow"),"b"=>array("black"));

$result=array_replace_recursive($a1,$a2);
show($result);

$result=array_replace($a1,$a2);
show($result);

##输出
Array
(
    [a] => Array
        (
            [0] => yellow
        )

    [b] => Array
        (
            [0] => black
            [1] => blue
        )

)
Array
(
    [a] => Array
        (
            [0] => yellow
        )

    [b] => Array
        (
            [0] => black
        )

)