replacing the letters in a string

[Newsgroup_User]

I have an odd set of fields for properties for my client. Some have multiple
letters which correspond to a code table. How can I loop through the string
and replace the letters with words

For example

A = central air
B = ceiling fan
C = A/C Unit

If the field looks like 'ABC', it would be outputted to the page as 'central
air ceiling fan A/C Unit'

--
Wally Kolcz
MyNextPet.org
Founder / Developer
586.871.4126

[Guest]

You don't say how many unique letters you have, but I presume it is 26 or less. If that's the case, you could index an array that has been initialized with the words. See concept code below. It assumes only upper case letters.