Removing "$_GET['x'] and $_GET]'y']" from image submit button

I have a image button at http://dot.kr/x-test/imageSubmitButton.php.
If you enter a keyword and click the image submit button, it will go to http://dot.kr/x-test/action0.php .
Unexpectedly, it has “$_GET[‘x’] and $_GET[‘y’]” at the result page.
How can I remove them (&x=$_GET[‘x’]&y=$_GET[‘y’] ) by fixing the page http://dot.kr/x-test/imageSubmitButton.php?

Use anything other than type=“image” as that one is specifically for capturing where in the image was clicked.

For example:

<button type="submit"><img src="..."></button>

and then style the button so you can only see the image it contains.