Deleting comments from database using php - php

Question

I am making a forum webpage where I'll put delete this buttons under each comment. Now when you press this button, I send the ID of the comment to PHP file using ajax which looks like this:
function Deletethis(index) {
var result = confirm("Want to delete?");
if (result==true) {
$.ajax({
url: "deletepost.php",
type: "POST",
data: index,
success: function(){
location.reload();
}
});
} else return false;
}
Now the problem is I can't receive it from the PHP end. I've used the debugger and saw that the index value is right. My PHP looks like this:
<?php
$con = mysqli_connect("localhost", "root", "123", "test") or die("DIE");
if (isset($_POST['index'])) {
$SoonToBeDeletedComment = $_POST['index'];
};
$index = intval($SoonToBeDeletedComment);
mysqli_query($con, "DELETE FROM commentsbox WHERE commentsbox.`ID` = $index");
echo "Post Deleted...";
mysqli_close($con);
?>
My code doesnt give any errors but it doesn't delete the post either. When I do the same process manually on navicat, it is working so I thought maybe the index is a string and it should be an integer. So I used intval but it didnt solve the problem either. Any ideas to help me improve my code is appreciated. Thanks in advance

Answer 1

In jQuery's .ajax call, the data property needs to be an object, not a string (string only it it's a full GET query string, actually, but it's not what you need here).
So, try this:
$.ajax({
url: "deletepost.php",
type: "POST",
data: {id: index},
success: function(response){
alert(response);
// location.reload();
}
});
And then in PHP, get it as:
$_POST['id']
UPDATE
Sanity checklist:
is your Deletethis function actually receiving the index?
is your ajax calling the right script?
is ajax data property an object, like I explained above?
what is the output of the PHP script?
what are the contents of $_POST?
is the id inside the $_POST array ($_POST['id'])?
does the row with that id exist in the db?
These questions should help you pinpoint the problem more accurately.

Answer 2

You send param to your PHP code without define his name : data: { index: index } // param : value
function Deletethis(index)
{
if ( confirm("Want to delete?") )
{
$.ajax({
url: "deletepost.php",
type: "POST",
data: {
index: index
},
success: function(){
window.location.reload();
}
});
}
}
Check also if your PHP code is working by calling page directly with param.