Question

我从数据库中提取了一些数据。运行良好。但是我想删除JSON中的双引号。这是我的代码；

$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);

正在回显这样的数据；

{"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"}

但是我想要这样：

{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

如果需要此输出，PHP提供的输出是正确的：

{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"}

在javascript中，尝试使用。.

var json = JSON.parse(response);

在php中尝试使用

$json = json_decode($json);

希望这会有所帮助。

Answer 2

您可以尝试编码然后像这样解码

$encodeJson = json_encode($json);

print_r(json_decode($encodeJson, true));

如果需要每个偏移量，则可以这样打印，并且不会添加引号：

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

编辑：下面的代码是注释答案：

$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'];

删除json_encode中的双引号

2 个答案: