不能使用php返回的数组[复制]

Question

This question already has an answer here:

• How do I return the response from an asynchronous call? 35 answers

I am getting an array returned from PHP which I json_encode() in php first and I echo that array. I get the array with an AJAX request disabling "Async". I know I shouldn't use that but it was the only way I could find.

It returns me this:

{"id":"38","name":"111111111111111111111111111111111111111111111.jpg"}

And this is my AJAX request:

function uploadFile(file){
    var formData = new FormData();
    formData.append('formData', file);
    $.ajax({
        url: 'inc/ajax/uploadFile.php',  //Server script to process data
        type: 'POST',
        data: formData,
        contentType: false,
        processData: false,
        async:   false,
        //Ajax events
        success: function(html){
            strReturn = html;
        }
    });
    return strReturn;
}

When I do this I get the whole array:

var img = uploadFile(file);
console.log(img);

But when I call "img.name" or img.id" it says undefined.

</div>

Answer 1

You're receiving back a JSON string representation of an object. Tell jQuery that you're expecting JSON, so that it parses it into an actual Javascript object for you:

data: formData,
dataType: 'json', // Add this line