Php unserialized a serialized json string - php

Question

After a http post in c# to php am getting an output of the form
in the code i have
public function actionSubmitInspection(){
$data = $_POST;
return (array)$data["check_comments"];
}
now am getting a result of the form
[
"[{\"id\":26,\"comment\":\"89oiu\"},{\"id\":27,\"comment\":\"comment 2\"}]"
]
as from my try typecasting array doesnt creating the array, How can i convert the serialized string to an array or an object.

Answer 1

use json_decode function.
public function actionSubmitInspection(){
$data = $_POST;
// replace it
//return (array)$data["check_comments"];
return json_decode($data["check_comments"]);
}
Out put will be array of objects.
Array
(
[0] => stdClass Object
(
[id] => 26
[comment] => 89oiu
)
[1] => stdClass Object
(
[id] => 27
[comment] => comment 2
)
)

Answer 2

as from my try typecasting array doesnt creating the array
Yes, it creates an array but the array it creates contains the JSON text.
You need to parse the JSON in order to restore the data structures it encodes. PHP provides the function json_decode() for this purpose. I recommend you pass TRUE as the second argument to json_decode() to get back arrays (otherwise it creates stdClass objects that are just arrays with a fancy syntax and limited options for processing).
// Assuming the value of $data['check_comments'] is:
// "[{\"id\":26,\"comment\":\"89oiu\"},{\"id\":27,\"comment\":\"comment 2\"}]"
$output = json_decode($data['check_comments']);
print_r($output);
The output:
Array
(
[0] => Array
(
[id] => 26
[comment] => 89oiu
)
[1] => Array
(
[id] => 27
[comment] => comment 2
)
)

Answer 3

You should use json_decode($data["check_comments"]) the output will be an array of stdClass objects:
Array
(
[0] => stdClass Object
(
[id] => 26
[comment] => 89oiu
)
[1] => stdClass Object
(
[id] => 27
[comment] => comment 2
)
)
or passing true on second param, json_decode($data["check_comments"], true) and the output will be an array of arrays:
Array
(
[0] => Array
(
[id] => 26
[comment] => 89oiu
)
[1] => Array
(
[id] => 27
[comment] => comment 2
)
)