Problem with “lower than” char

You need to encode it so that < becomes < and > is >

If you use them a lot, why not make a Quicktag ?
https://www.tamba2.org.uk/wordpress/quicktags/

Using < is described there.

–Bah.. can’t get it to show right

Thanks for your answer, but I don’t need the < in my admin panel as a Quicktag… I need it in the posts and comments.

That’s what he’s talking about. And depending on how often you use the greater than or less than symbols, you can create a quicktag using the link he provided so all you do is click a button when writing, and it inserts the correct code &lt;
Also, check coffeetocode’s plugins, he’s got a preserve code plugin, may help with what you want also.
https://www.coffee2code.com/wp-plugins/

For comments, you could try altering the Comment Quicktags plugin: https://www.asymptomatic.net/wp-hacks

It’s &lt; for the less than sign… and &gt; for the greater than sign. In fact the lt and gt come from LessThan and GreaterThan … that’s how I remember them.

Tg

Well I tested both Plugins, but they didn’t work properly. I edited the functions-post.php by myself and fixed the problem…