我使用ajax的联系表格不起作用

Question

代码是这样的。它没有回应。 JavaScript的。 我正在尝试联系表格。

function sendContact() {
var valid;
valid = validateContact();
if(valid) {
    jQuery.ajax({
        url: "contact.php",
        data:'name='+$("#name").val()+'&email='+$("#email").val()+'&subject='+$("#subject").val()+'&content='+$(content).val(),
        type: "POST",
        success:function(data){
            $("#mail-status").html(data);
        },
        error:function (){}
    });
}
}

php文件是

<?php
include_once "config.php";

$name = validate($_POST["name"]);
$email = validate($_POST["email"]);
$message = validate($_POST["message"]);
$subject = validate($_POST["subject"]);
$to = 'myemail@example.com';


 $mailHeaders = "From: " . $name . "<" . $email . ">\r\n";
 if (mail($to, $subject, $message, $mailHeaders)) {
 print "<p class='success'>Contact Mail Sent.</p>";
} else {
print "<p class='Error'>Problem in Sending Mail.</p>";
 }

 function validate($data)
 {
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}