通过jQuery AJAX POST发送JavaScript数组

What I want to do is send an JavaScript Array to a PHP file.
This is what I got:

我想要做的是将JavaScript数组发送到PHP文件。这就是我得到的：

var mydata = [];
        console.log(document.getElementsByTagName("input")[0].name);
        for (var i = 0; i < document.getElementsByTagName('input').length; i++) {
            mydata[document.getElementsByTagName("input")[i].name] = document.getElementsByTagName("input")[i].value;
        };
        for (var i = 0; i < document.getElementsByTagName('select').length; i++) {
             mydata[document.getElementsByTagName("select")[i].name] = document.getElementsByTagName("select")[i].value;
        };
        console.log(mydata);

        $.ajax({
            method: "POST",
            url: "q.php",
            data: {'lol': JSON.stringify(mydata)},
            contentType: 'application/json',
            dataType: 'json'
        })
        .done(function( msg ) {
            alert( "Data Saved: " + msg );
            $('#debug').html(msg);
        });

So as you can see, I create an array with a loop, at that moment all is fine. The problem is when I try to sent it through POST with JSON. I don't know if this is the best method...

所以你可以看到，我创建了一个带循环的数组，那时候一切都很好。问题是当我尝试通过POST与JSON发送它。我不知道这是不是最好的方法......

I tried without JSON.stringify(); but the $_POST still empty

我试过没有JSON.stringify（）;但是$ _POST仍然是空的

It seems like the post isn't sent, but I can see in the console the XHR post request has been sent.

好像帖子没有发送，但我可以在控制台中看到已发送XHR帖子请求。

1 个解决方案

#1

Try to use this code and see the changes.

尝试使用此代码并查看更改。

remove the contentType: 'application/json', dataType: 'json'

删除contentType：'application / json'，dataType：'json'

And change var mydata = [] into var mydata = {}

并将var mydata = []更改为var mydata = {}

your ajax should look like this

你的ajax应该是这样的

        $.ajax({
            method: "POST",
            url: "q.php",
            data: {'lol': mydata}
        })
        .done(function( msg ) {
            alert( "Data Saved: " + msg );
            $('#debug').html(msg);
        });

You dont have to stringify your mydata because you already decleared it as object.

你不必将你的mydata字符串化，因为你已经将它作为对象删除了。

Hope it helps

希望能帮助到你

#1