AJAX POST 500 Internal Server Error on hosting - php

Question

I'm develop something that need some data to load on AJAX (using POST method).
When I'm build the code on localhost (using XAMPP on Windows 7). It works pretty well.
But, when I'm moved the code to hosting server, It give me a 500 Internal Server Error..
Here's the code that send the AJAX Request
$.post("the-link-to-ajax-handler",
{
//some parameter
roomid : roomid,
amenities : amenities,
},
function(data){
//process that I do when ajax complete
}
And here's the AJAX Handler (using PHP)
$roomid = mysqli_escape_string($conn, $_POST['roomid']);
$amenities = mysqli_escape_string($conn, $_POST['amenities']);
echo $roomid."<br/>".$amenities;die();
*I'm trying to print the parameter but no luck, I'm still get the 500 Error
Screenshot of Network Panel from process on hosting
And here's the Screenshot Network Panel from process on localhost (definitely with the same code)

Answer 1

1) Are you missing any javascript plugin files or the plugin files path is not defined you faced the 500 internal server error.
2) Hosting server is Case Sensitive check the Variable values.
3) If you move to ajax before alerting the flow.

Answer 2

Read your error logs to find out problem or try adding error_reporting(E_ALL) to your code then run again.

Answer 3

Try this :
$.ajax({
url: "the-link-to-ajax-handle", // Url to which the request is send
type: "POST", // Type of request to be send, called as method
data: {roomid:roomid,amenities:amenities}, // Data sent to server, a set of key/value pairs representing form fields and values
dataType: 'json'
}).done(function (data) {
console.log(data);
}).fail(function (data) {
console.log('failed');
});

Answer 4

I had same issue, i noticed that my php files permission was set to 0755. i changed it to 0644 and it worked well.