警告：json_decode（）期望参数1为字符串

Question

I insert PHP array to mySql using json_encodemethod like this :

["11","10","4"]

Now I need to convert to php array:

$me = ["11","10","4"];
$you = json_decode($me, true);
echo $you;

But in result I see : Warning: json_decode() expects parameter 1 to be string, array given in C:\xampp\htdocs\test\test.php on line 5

How do fix this?!

Answer 1

Your problem is that $me isn't a string. You should simply encapsulate it in single-quotes to change this.

$me = '["11","10","4"]';
$you = json_decode($me);
print_r($you);  // becasue its now a PHP array, 
                // copy/paste will get you every time