Calculate the similarity between two strings sha1 soundex String Functions PHP Manual similar_text (PHP 4, PHP 5)similar_text — Calculate the similarity between two strings Description int similar_text ( string $first , string $second [, float &$percent ] ) This calculates the similarity between two strings as described in Oliver [1993]. Note that this implementation does not use a stack as in Oliver's pseudo code, but recursive calls which may or may not speed up the whole process. Note also that the complexity of this algorithm is O(N**3) where N is the length of the longest string. Parameters first The first string. second The second string. percent By passing a reference as third argument, similar_text() will calculate the similarity in percent for you. Return Values Returns the number of matching chars in both strings. See Also levenshtein() soundex() sha1 soundex String Functions PHP Manual
