Question

In this question, I had help in simplifying and forming a valid complicated JSON POST request. However, I’ve now encountered some odd behavior server-side.

function postTour(){
  $post = json_decode($_POST['json'];
  $success = false;

  for ($i=0; $i<count($post); $i++){
    $filename = $post[i]['location']['filename'];

  }
}

Here, $filename is never initialized and never shows up as a variable in the debugger. $post returns a multi-level array of the format

$post[3]
   [0] =>
       location = [ 5 key/value pairs ]
       links = one to n arrays

   [1] =>
       location = [ 5 key/value pairs],
       links = one to n arrays

In the debugger, each outermost array and location array has the type stdClass, while the links array has the type array[n]. However, I can’t access any information inside $post. Why is this?

Answer 1

try passing true as a second argument to json_decode() in order to convert it to an actual array.

$post = json_decode($_POST['json'], true);