cropping a string

From: mr_burns (bissatch_at_yahoo.co.uk)
Date: 07/31/04 

Date: 30 Jul 2004 15:25:05 -0700

hi,

how do i check the character length of a string and, if neccessary,
crop it down to a smaller string. for example, i have the following
string:

'i am a large string and need cropped to a bitesize chunk'

how do i find out how many characters are in this string?

also, once i have found this out (56) how do i crop it down to a
smaller size? for example, crop it to 15 characters:

'i am a large st'

cheers

burnsy

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