使用php从字符串到数组的json

Question

I have a problem with json parsing. I have already read the many questions here on stackoverflow but I can't figured out what I'm missing.

In my site I use Facebook Api to post my feed using curl and it respond with a json message. I take this response and I save it in my database.
In my Backoffice I need to retrieve this message and print it in case of error.

Here an example about an error message:

{"error":{"message":"(#1500) The url you supplied is invalid","type":"OAuthException","code":1500}}

In my php page I need to get just the message part so I did:

$message = get from the db and fetch;
$error_array = json_decode($message,true);
print_r($error_array);

but it doesn't print anything, just a blank page.
If I just print $message I can see the entire string.

What am I missing? This issue it's driving me crazy all day long!!

Answer 1

I tried the following:

<pre>
<?php

$jsonStr = '{"error":{"message":"(#1500) The url you supplied is invalid","type":"OAuthException","code":1500}}';

$error_array = json_decode($jsonStr, true);

print_r($error_array);

?>

and getting output:

Array
(
    [error] => Array
        (
            [message] => (#1500) The url you supplied is invalid
            [type] => OAuthException
            [code] => 1500
        )
)

It's working as intended.

I suspect the problem is with this:

$message = get from the db and fetch;

After you load the $message variable, do a var_dump($message) and see if the string is in there (as expected).