Object of class stdClass could not be converted to string- can't find a solution

Question

I have the following code:

if ($difference)
{
    $.post("recover_functions/upload_photos.php",
           {upload:$difference},
           function(response)
           {
               alert($difference);
               if (response.status)
                   alert("Successfully uploaded photos");
               else
                   alert(response);
            });
}

The alert will display:

{"difference":"[{\"aid\":\"100000543443572_1073741825\",\"backdated_time\":null,\"caption\":\"\",\"link\":\"http:\\\/\\\/www.facebook.com\\\/photo.php?fbid=614604095234366&set=a.614604001901042.1073741825.100000543443572&type=1\",\"pid\":\"100000543443572_2384218\",\"place_id\":null}]"}

And I get the `POST request like this:

$string_diff = $_POST['upload'];
$array_diff  = json_decode($string_diff);

echo $array_diff;

Not the response is Object of class stdClass could not be converted to string. Please help, I have a deadline (1 hour) and I can't get this working.

Solution 1

Like an array, you can't echo a stdClass object. You could var_dump($array_diff) and echo specific properties like so:

echo $array_diff->my_property;

Solution 2

After $array_diff = json_decode($string_diff);, $array_diff is an object, so you can't just echo it. Try something like

echo $array_diff->your_property;

Comments

[Sherlock]

You can if it implements toString.

[hek2mgl]

@Sherlock StdClass doesn't implement __toString

[Sherlock]

I was making a general comment on his statements that objects can't be echoed.

[Terry Harvey]

@Sherlock Sorry, you're right. I edited my post - should have been more specific.