display x number of chars in string

[Anon]

i only want to display the first 20 characters in a string/word. how do i do that?

i want to make this string:

"http://www.longurlwhichwontfitintotable.com"

display as this:

"http://www.longurlwh"

please advise.

[Anon]

never mind. i figured it out.