Calling php in server from javascript

Question

There are few questions with this name but I want a simple example without lots of details.

There is a button on page, when I click, it must go to server and run a php file on the server. Below code is not working...

my html code (with js) is:

<button onclick="myFunction()">Do it</button>
<script type="text/javascript">

function myFunction(){
    var x = new XMLHttpRequest();
    x.open("GET","C:\testSample\sample.php",true);
    x.send();
    return false;
</script>

my php file is:

<?php
 echo "Hello world";
 ?>

Is it about the path of php file that I defined in js ?

I think you want to use a URL to sample.php, and not a filepath. — Ben Hillier
– Ben Hillier, Commented Dec 15, 2016 at 12:09
You can't send an AJAX request to the file system, it has to be to a web server. You need to actually install PHP and some kind of web server. — David
– David, Commented Dec 15, 2016 at 12:09
hey thanks. there is already a server in production installed on IIS. when we write "prodserver/mod/page/view.php?id=130" on explorer it goes to the page including the button. Should I find the path of the php file from IIS manager on server ? — abidinberkay
– abidinberkay, Commented Dec 15, 2016 at 12:21
@abidinberkay: If sample.php is on that server then you'd use its HTTP address to access it. — David
– David, Commented Dec 15, 2016 at 13:28

Abhishek · Accepted Answer · 2016-12-15 12:24:58Z

2

You have to install XAMPP server because PHP file needs to be executed on web server rather than some local file location. Once you install you can specify the path like

x.open("GET","http://localhost/testSample/sample.php",true);

answered Dec 15, 2016 at 12:24

Abhishek

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3 Comments

abidinberkay Over a year ago

I modified the path as you suggested, but still the button does nothing, not writing "hello world". Do you think my js and php sysntax is correct ?

Abhishek Over a year ago

You have missed closing bracket of myFunction()

David Over a year ago

@abidinberkay: You're also not actually using the "hello world" response anywhere, so where do you even expect it to be printed?

Mayank Pandeyz · Accepted Answer · 2016-12-15 12:09:30Z

0

Your path be something like this:

xmlhttp.open("GET","./Path/Here/books.xml", false);  //for relative urls

xmlhttp.open("GET","http://localhost/Path/Here/books.xml", false); //for absolute urls

answered Dec 15, 2016 at 12:09

Mayank Pandeyz

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