Can't post value's to php file using AJAX Jquery

Question

I am having an incredibly hard time with this. I'm trying to post my value's from a form to a php file using ajax jquery. I do find the values in my console but when i execute the ajax method it doesn't post the values.

Jquery code

var formData = [];

function formValidate() {
 var error = false;
  $(".form .required").each(function(k, v) {
   $(v).removeClass("error");
   if ($(v).attr("type") === "radio" && $(v).prop("checked")) {
     formData[$(v).attr("id")] = $(v).val();
   } else if ($(v).val() === "") {
     $(v).addClass("error");
     //$(v).prop("placeholder”,”Required.”);
     error = true;
   } else {
     formData[$(v).attr("id")] = $(v).val();
   }
  });
    console.log(formData); //all data is successful shown 
    return error;
 }

// send function
function formSend() {
  $.ajax({
  type: 'POST',
  url: "include/mail.php",
  data: formData,
  dataType: "html",
  encode: true,
  success: function(response) {
     alert(response);

  },
  error: function() {
     $("form").hide();
  }
 });
 event.preventDefault();

}

Html code

<form action="" id="form-3">
 <div class="container row">
  <div class="col-md-4 col-xs-12">
  </div>
  <div class="col-md-4 col-xs-12">
  <div class="form-group">
    <input type="text"  class="form-control required" name="naam" placeholder="Naam" id="naam">
  </div>
  <div class="form-group ">
    <input type="text" class="form-control required" name="telnr" placeholder="Telefoon" id="telnr">
  </div>
  <div class="form-group">
    <input type="email" class="form-control required" name="email" placeholder="E-mail" id="email">
  </div>
  </div>
 </div>
</form>

I do find the value's if i console.log(formData) so why won't it post it?

EDIT:

here you can see the images of the console log

When the request is made. The values need to be send to mail.php

[![enter image description here][2]][2]

And here you can see that formData does display if i use console.log

Answer 1

You should pass form data using serilize rather than individual field value. Try below code:

jQuery Code:

var formData = $("form").serialize();
$.ajax( {
    type: "POST",
    url: "YOUR PHP FILE PATH",
    data: formData,
    dataType: 'json',
    beforeSend: function () {
        //do stuff progressing
    },
    success: function (resp) {
       //do stuff after post
    },
    error: function (e) {
        alert('error: ' + JSON . stringify(e));
    }
});  

PHP Code:

<?php 
print_r($_POST); //it will print array with all form input field
?>

Note: Set Form action="javascript:void(0)"

Answer 2

the problem is formData is a JSONArray - but in the ajax call you need to provide a JSONObject . So initiate formData as JSONObject in the validation function and then push the key values in it.

Rewrite the formData initiation like:

var formData = {};

And it should work.