Metaphone is a phonetic algorithm published in 1990 for indexing words by their English pronunciation.
Soundex is an phonetic algorithm for indexing names based on their pronunciation in spoken English.
"In php you should use metaphone it is more accurate than soundex"
from question "How to find a similar word for a misspelled one in PHP?"
|Much more accurate||
"General consensus including the php docs is that metaphone is much more accurate than soundex when dealing with the english language"
from question "RegEx: Compare two strings to find Alliteration and Assonance"
"Then i tried the metaphone function and it worked far better than soundex"
from question "Need to write a php script that will display value near to user entered value"
"Double metaphone - this algo will give you a better match than soundex at the cost of speed it is really good for spelling correction though"
from question "SQL Fuzzy Matching"
"Edit double metaphone was specifically designed to be better than soundex and work in languages other than english"
from question "How to determine if a record in every source, represents the same person"