I’ve search around on SO, but can’t find an exact answer to my needs.
Generating a URL is pretty easy…
<link rel="canonical" href="https://example.com<?php echo ($_SERVER['REQUEST_URI']); ?>" />
But, the issue with this is, the
$_SERVER['REQUEST_URI']) will always fetch the current file in use, so the canonical URL could potentially change.
So it could flick between www.example.com/hello.php and www.example.com/hello/, and many other variations depending on how the user accesses your site.
How do I make it so it’s always the same url? (preferably without .php)
Worked it out myself, pretty basic:
<?php $fullurl = ($_SERVER['REQUEST_URI']); $trimmed = trim($fullurl, ".php"); $canonical = rtrim($trimmed, '/') . '/'; ?>
<link rel="canonical" href="https://example.com<?php echo $canonical ?>" />
I’m sure there’s different methods, but it works for me.