> Of course, English uses 26 letter to represent 44 or so sounds, so as far as learning to read and write via phonics goes, English is one of the worst examples there is.
What you really want, for learning to read and write via phonics, is determinism -- you want someone to be able to write something if they know how it sounds, and to be able to read something if they see its written form. There's no need to have symbols and phonemes correspond one-to-one, and they generally don't even when people are devising their own orthography in a green field.
For example, using C for a generic consonant, we have the following regular spelling rules in English:
aC -- TRAP vowel
aCe -- FACE vowel
eC -- DRESS vowel
eCe -- FLEECE vowel
iC -- KIT vowel
iCe -- PRICE vowel
oC -- LOT vowel
oCe -- GOAT vowel
uC -- STRUT vowel
uCe -- GOOSE vowel
Voila, ten sounds in five symbols. The problem from a phonics perspective isn't that we don't have ten different vowel symbols for these, it's that we have other ways of writing the same vowels ("beat" is not written "bete") and other ways of reading words that appear to conform to these rules ("debris" does not rhyme with "priss", or even with "his").