Remove double quote in json_encode

Question

I pulled some data from my database. Is working perfectly. But I want to remove the double quotes in the JSON. Here are my codes;

$sql = "SELECT id, instructions, quiz_question, correct, wrong, wrong1, wrong2 FROM student_quiz WHERE subject = 'SOCIAL STUDIES' AND type = 'challenge'";

$results = $pdo->query($sql);
$results->setFetchMode(PDO::FETCH_ASSOC);

$json = [];

while($row = $results->fetch()) {
    $choices = [
        $row['correct'],
        $row['wrong'],
        $row['wrong1'],
        $row['wrong2'],
    ];

    // shuffle the current choices so the 1st item is not always obviously correct
    shuffle($choices);

    $json[] = [
        'question' => $row['quiz_question'],
        'choices' => $choices,
        'correctAnswer' => $row['correct'],
    ];
}

echo json_encode($json);

Is echoing a data like this;

{"question":"Who said this statement \"Ghana your beloved country is free for ever\"?
<\/p>","choices":["Jack Chan","Donald Trump","Ato Ahoi","Kwame Nkrumah"],"correctAnswer":"Kwame Nkrumah"}

But I want it like this:

{question:"Who said this statement \"Ghana your beloved country is free for ever\"?
<\/p>",choices :["Jack Chan","Donald Trump","Ato Ahoi","Kwame Nkrumah"],correctAnswer :"Kwame Nkrumah"}

Answer 1

The output PHP gave is correct, if you need this output:

{question:"Who said this statement \"Ghana your beloved country is free for ever\"?
<\/p>",choices :["Jack Chan","Donald Trump","Ato Ahoi","Kwame Nkrumah"],correctAnswer :"Kwame Nkrumah"}

in javascript, try using..

var json = JSON.parse(response);

in php try using

$json = json_decode($json);

Hope this helps.

Answer 2

you could try to encode then decode it like this

$encodeJson = json_encode($json);

print_r(json_decode($encodeJson, true));

if you would like each offset then you can print it like this and no quotes will be added:

$decodeJson = json_decode($encodeJson, true);
print $decodeJson['question'];

EDIT: below code is comment answer:

$data = array(
"question" => "Who said this statement Ghana your beloved country is free for ever",
"choices" => array("Jack Chan","Donald Trump","Ato Ahoi","Kwame Nkrumah"),
"correctAnswer" => "Kwame Nkrumah"
);
$jsonEncode = json_encode($data);
$jsDecode = json_decode($jsonEncode, true);

// a correct json encoded array would output something like this:

{
"question":"Who said this statement Ghana your beloved country is free for ever ?",
"choices":[
    "Jack Chan",
    "Donald Trump",
    "Ato Ahoi",
    "Kwame Nkrumah"
],
"correctAnswer":"Kwame Nkrumah"
}

//to select correct answer
print $jsDecode['correctAnswer'];