CODEWITHSUNDEEP
javascriptphpajaxxml
Suprsonic
Suprsonic

Reputation: 135

How to send XMLHttpRequest to specific php function?

I am trying to do a image uploading with ajax. I have run into a bit of problem. I have two functions in func-ajax.php : function doSth(){} and function doSthElse(){}. I want to target the doSth() function This is my javascript side:

var xhr = new XMLHttpRequest();
xhr.open("POST", 'func-ajax.php', true);
xhr.setRequestHeader("X_FILENAME", file.name);                  
xhr.send(file);

How can I specify whick function to send the request?

Upvotes: 0

Views: 2171

Answers (4)

Max Flex
Max Flex

Reputation: 1151

You cannot run a specific function from the func-ajax.php file.

What you should do is create something like ajax-controller.php, containing 

    $functionName = $_POST["func"]; // func parameter should be sent in AJAX, determines which function to run

    if (function_exists($functionName)) { // check if function exists
         $functionName(); // run function
    }

And send all requests from JS to this file xhr.open("POST", 'ajax-controller.php', true);

Hope you get the idea.

Upvotes: 2

maximx1
maximx1

Reputation: 89

You can add a parameter in the data being sent and that you check for in some sort of if block that you call the function manually from. You could also introduce a framework like Slim, to create an REST-api point that you can hit.

Upvotes: 0

Quentin
Quentin

Reputation: 943571

You can't send an HTTP request to a function.

You make a request for a resource. That request can include POST data and it can include HTTP headers.

The server then decides how to respond the request. It might choose to run a PHP program.

It is up to the PHP program to look at the requested resource / POST data / headers and determine which function(s) to run.

Upvotes: 0

Flosi
Flosi

Reputation: 671

You want to send GET/POST parameters along with your request, and catch those in the PHP script.

Upvotes: 0

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