php - INSERT INTO mySQL from client side with AJAX -

i want insert data client side remote mysql database

i calling function , passing variable it.

function uploadmetrics(email){    var email;    $.ajax({     type: 'post',     url: 'php/insertconvertdata.php',     data: {         data: {"email" : email },        //data:email,     },     success: function(result) {         console.log(result);     }   }); } 

on server have php file

$user = $_post['email']; echo $user; echo '<pre>'; print_r($_post); // viewing array var_dump($_post); // viewing info of array echo '</pre>';   $conn = new mysqli($servername, $username, $password, $dbname);  if ($conn->connect_error) {     die("connection failed: " . $conn->connect_error); }   $sql = "insert cms_conversion_funnel (email) values ('" . $user . "')";   if ($conn->query($sql) === true) {     echo "new record created successfully"; } else {     echo "error: " . $sql . "<br>" . $conn->error; }  $conn->close(); 

the code runs fine , can connect database , run insert in inserts empty string.

i dumped out value of 'email' console , got this:

(    [data] => array         (             [email] => teretst@gmail.com         )  ) array(1) {   ["data"]=>   array(1) {     ["email"]=>     string(17) "teretst@gmail.com"   } } 

it seems there value in email variable not being picked passed insert statement. can help, new php , ajax.

because it's $_post['data']['email'], not $_post['email'].