JSON.parse() 不会将我的 PHP 字符串转换为 JavaScript 对象

Question

I have used json_encode() to echo an associative array from PHP to JavaScript through this $.post method:

$.post("php/myfile.php", {}, function(data){
    exercises = data;
    //exercises = json.parse(data);   // console -> Uncaught ReferenceError: json is not defined
    alert(typeof exercises);          // alerts -> String
    alert(exercises);                 // alerts -> {"1":"Bench Press","2":"Squat","3":"Deadlift"}
    alert(json.stringify(exercises)); // console -> Uncaught ReferenceError: json is not defined
});

For some reason I can't convert the string to a JavaScript associative array using json.parse() .

What's my issue?

Answer 1

You can pass json as the dataType to the ajax call so that jQuery will pass the converted value

$.post("php/myfile.php", {}, function (exercises) {
    alert(typeof exercises); // alerts -> String
    alert(exercises);
}, 'json');

In your code the problem is the case of json , it should be JSON.parse() not json.parse()