Question

I’m attempting to make the preg_replace_callback return a match only if it doesn’t contain a certain character.

So if the string contains:

{xxxx}

return a match.
If it contains:

{xxxx|xxxx}

Don’t return a match.

Here’s my attempt:

\{(.*?!\|.*)}

Thanks you guys!

Answer 1

Your full pattern will be this:

/{([^|]*)}/

Match any character that’s not a pipe, wrapped around curly braces.