Calling a PHP function using AJAX, how?

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Calling a PHP function using AJAX, how?

deepode

Welcome!
I am not sure if this is right section (because of AJAX section)....

I have 1 php file - "functions.php" containing many functions like add(), edit() etc.

But IDK how to operate'em using AJAX HMLHttpRequest()....actually I M confused at

send()

...

Here are files, let me know how to operate functions using AJAX and yes... parameters are required. And yes....POST method is required too.

functions.php:

function add($name) {
echo $name.' add function is working'; //Just to test
};

function edit($name|) {
echo $name.' edit function is working'; //Just to test
};

beta.html:

<!DOCTYPE html>
<html>
<head>
<script>
// variable named XMLHTTP is used for creating XMLHttpRequest();
</script>
</head>

Sorry if i didn't explained well enough, hope you will get it.
Thanks in advance.

darkylord

Here is an example, I hope it helps, other than that you can read some tutorials on ajax and understand it better.

beta.html

<!DOCTYPE html>
<html>
<head>
<script>
function loadXMLDoc()
{
var xmlhttp;
if (window.XMLHttpRequest)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
  }
else
  {// code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
xmlhttp.onreadystatechange=function()
  {
  if (xmlhttp.readyState==4 && xmlhttp.status==200)
    {
       // use the xmlhttp.responseText however you need.
    }
  }
xmlhttp.open("POST", "functions.php?name="+somename, true);   //somename is whatever you want to send in there as name
xmlhttp.send();
}
</script>
</head>

The loadXMLDoc() can be called when a button is clicked or when someone types something in a text field or even with a timer that calls it every few seconds. Just like any other javascript function.

functions.php:

function add($name) { 
echo $name.' add function is working'; //Just to test 
}; 

function edit($name|) { 
echo $name.' edit function is working'; //Just to test 
};  

if(isset($_POST['name'])){
$name=$_POST['name'];

add($name);
edit($name);
                  //whatever other function you want to call
}

deepode

Thanks, your answer helped but..

$_POST['name'] isn't being set...why?

Here are files......

/* AJAX */
function AjaxFunction()
{
var somename = "somenameTest";

var xmlhttp;
if (window.XMLHttpRequest)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
  }
else
  {// code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }

xmlhttp.onreadystatechange=function()
  {
  if (xmlhttp.readyState==4 && xmlhttp.status==200)
    {
       document.getElementById("txtHint").innerHTML = xmlhttp.responseText; // use the xmlhttp.responseText however you need.
    }
  }
xmlhttp.open("POST","gameFunctions.php?name="+somename, true);   //somename is whatever you want to send in there as name
xmlhttp.send();
alert("Script loaded");
}

Here is gameFunctions.php

function add($name) {
};
echo "php data<br>";
if(isset($_POST['name'])) {
echo "true";
}
else {
echo "false";
}

And Output....

[FONT=Courier New]
php data
false
[/FONT]

darkylord

My bad, the $POST['name'] should be $GET['name'] .

deepode

Are you sure?

darkylord

Yes I tested the code and worked fine with $_GET['name'] .