Replace strings CONTAINING apostrophes

[dougp23]

I have this PHP Program I have been hobbying for years. Started in old PHP3 early PHP4. So with the newer PHP, things are starting to break!

I have this string:

session_is_registered('UserID')

And I need to convert to this:

isset($_SESSION['UserID'])

in more than 200 scripts in my directory. I have been toying with sed (in a copy of the dir of course in case I really screw things over, lol) but am not gettig too far. The new code needs to swap ( ) for [ ] and i'm just all hung up!

Any help will be hugely appreciated!

[tpl]

welcome to the forum

sed 's/(/[/;s/)/]/' <filename