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1. virtuexru
   Member
   Posted 1 year ago #

   I'm trying to create a plugin to not allow any weird characters into the permalink such as ®, ©, ™, ∞, &, etc...

   I did a filter onto the 'editable_slug' and while this works for display purposes (the weird characters get filtered out), even though it might not show up in display, it is still being passed through when I update a post.

   Anyone know how to actually make sure the data is passed AFTER I have cleaned it up? Or any idea on how I would go about doing this? Thank you!

   Here is my plugin for reference:

   if( !function_exists( 'strip_weird_permalink' ) )
   {
   	function strip_weird_permalink($post_id)
   	{
   		$output = $post_id;
   		// strips all *non-ascii* characters
       		$output = preg_replace('/[^(\x20-\x7F)]*/','', $output);
       		return $output;
   	}
   	add_filter('editable_slug', 'strip_weird_permalink', 10, 1);
   }

2. virtuexru
   Member
   Posted 1 year ago #

   Should I be filtering post_link instead? How can I denote whether or not the user is in an administration page? I just want to filter out non-ASCII characters when editing the permalink on the backend.

3. virtuexru
   Member
   Posted 1 year ago #

   Any ideas? Thanks in advance!

4. virtuexru
   Member
   Posted 1 year ago #

   Found a fix, have to hook into the sanitize_title to clean the permalink up.

   add_action('sanitize_title', 'strip_weird_permalink', 1, 1);

5. Faisal
   Member
   Posted 1 year ago #

   Hi,
   I'd really appreciate knowing how you went about implementing this in your blog -- is there a plugin you created?
   At the present time, a number of old post titles have » in them and are truly messing up url shortening and editing.
   Much thanks,
   Faisal

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