PHP get post button through ajax - php

Question

In product-master.php (view page), I have a few buttons: Add, Edit, Delete.
Each button got unique name: btnAddProduct, btnEditProduct, btnDelProduct
These buttons share the same action page as shown in the ajax code below: action/product-master.php (yes I named it according to the view page, just different folder)
Yes, I'm using ajax method to process form data. How to validate which button was pressed?
I tried using isset($_POST['btnAddProduct']) but it is not working. Below is my button:
btnAddProduct
<input type="submit" class="btn btn-success" id="btnAddProduct" name="btnAddProduct">
product-master.php
$('#btnAddProduct').on('click', function(e) {
var formData = new FormData($('#form-add-modal')[0]);
$.ajax({
url: "action/<?php echo basename(__FILE__); ?>",
type: "POST",
data: formData,
contentType: false,
processData: false,
success: function(data) {
console.log(data);
},
error: function(){
//Display error here
}
});
});

Answer 1

Buttons aren't included when you create a FormData from a form, since the FormData constructor has no way of knowing which button was clicked. You need to add it to the FormData explicitly.
$('#btnAddProduct').on('click', function(e) {
var formData = new FormData($('#form-add-modal')[0]);
formData.set(this.name, "1");
$.ajax({
url: "action/<?php echo basename(__FILE__); ?>",
type: "POST",
data: formData,
contentType: false,
processData: false,
success: function(data) {
console.log(data);
},
error: function(){
//Display error here
}
});
});