javascript - JS : Processing form as a POST but retrieving as a GET?

Question

用 PHP 检索数据，我不能使用 $_POST；但是 $_GET。为什么？我是否错误地发送了我的表单数据？

我原以为 request.open("POST" 会将表单作为 POST 而不是 GET 处理？我如何将其作为 POST 发送？

var request = new XMLHttpRequest();
request.open("POST","email.php?text=" + textarea.value + "&email=" + email.value, true);

request.onload = function() {
    if (request.status >= 200 && request.status < 400) {
        var resp = request.responseText;

        console.log(resp);

    }
};

request.send();

Answer 1

因为您要在 URL 中添加数据。

将您的请求更改为:

request.open("POST","email.php", true);
request.setRequestHeader("Content-length", 2); // 2 here is the no. of params to send
....


request.send("text=" + textarea.value + "&email=" + email.value);

文档:https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest