Call PHP function on Button click using jquery ajax

This can be achieved using ajax, lets see an example,

File : index.php


$('.myButton').click(function() {

  type: "POST",
  url: "phpFileWithFunction.php"
}).done(function( resp ) {
  alert( "Hello! " + resp );



<input type="button" value="Click" id="myButton" />
File : phpFileWithFunction.php

class Foo {
function myFunc() {
	return "This data is received from PHP function on button click!";


$fooObj = new Foo();

echo $fooObj->myFunc();

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