Question

I have an index.html page that makes an AJAX request to a PHP page; the expected return is JSON. The code seems to work well. However for some random reason, my PHP file sometimes returns <!-- end of php tag--> before the json text.

The return that breaks the program looks like this:

<!-- end of php tag-->{"success":true,"message":"Informacion registrada. Porfavor verifica su telefono."}

That html comment breaks the whole thing. The index.html file can’t process the file correctly when that comment is returned. I have no idea why that comment gets returned or where it comes from. Its not in any of my code… and when I troubleshoot it, it seems to go away. But then I submit different values and it comes back… Very weird behavior..

Any insight is greatly appreciated!

Answer 1

I would expect you have something like this somewhere:

<?php

    stuff
?>
<!-- end of php tag -->

Everything outside of the <?php and ?> tags will get output to the browser.

Find it and delete it.