Hi. I am not very familiar with the Greek alphabet beyond mathematical usage. Below is what I came up with assuming that Latin
A is like Greek
Alpha, Latin
a is like Greek
alpha, and so forth. I make no claims of correctness.
PHP Code:
$phpdig_string_subst['iso-8859-7'] = 'A:¶Á,a:Üá,B:Â,G:Ã,g:ã,D:Ä,
d:ä,E:¸Å,e:Ýå,Z:Æ,z:æ,I:ºÉÚ,i:Àßéú,K:Ê,k:ê,L:Ë,l:ë,M:Ì,N:Í,n:*,
X:Î,x:î,O:¼Ï,o:ïü,P:Ð,p:ð,R:Ñ,r:ñ,S:Ó,s:òó,T:Ô,t:ô,Y:¾ÕÛ,y:*õûý';
$phpdig_words_chars['iso-8859-7'] = '[:alnum:]ßµ';
I was not sure what to do with the following characters: Eta, eta, Theta, theta, Phi, phi, Chi, chi, Psi, psi, Omega, omega.
I also made the following assumptions: Latin G is like Greek Gamma, Latin g is like Greek gamma, Latin R is like Greek Rho, Latin r is like Greek rho, Latin Y is like Greek Upsilon, Latin y is like Greek upsilon.
As I m not very familiar with the Greek language, this is the best that I can offer.