AJAX request and PHP class functions

Question

How to call a PHP class function from an ajax call

animal.php file

class animal
{     
  function getName()
  {
    return \"lion\";
  }         


        

Answer 1

You need one additional script, because your animal class can't do anything on its own.

First, in another script file, include animal.php. Then make an object of the animal class - let's call it myAnimal. Then call myAnimal->getName() and echo the results. That will provide the response to your Ajax script.

Use this new script as the target of your Ajax request instead of targeting animal.php.

Answer 2

I think that woud be a sleek workaround to call a static PHP method via AJAX which will also work in larger applications:

ajax_handler.php

<?php

// Include the class you want to call a method from

echo (new ReflectionMethod($_POST["className"], $_POST["methodName"]))->invoke(null, $_POST["parameters"] ? $_POST["parameters"] : null);

some.js

function callPhpMethod(className, methodName, successCallback, parameters = [ ]) {
    $.ajax({
        type: 'POST',
        url: 'ajax_handler.php',
        data: {
            className: className,
            methodName: methodName,
            parameters: parameters
        },
        success: successCallback,
        error: xhr => console.error(xhr.responseText)
    });
}

Greetings ^^