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: http://old.master.cmc.msu.ru/php/function.similar-text.html
Дата изменения: Sun Feb 3 22:56:23 2002 Дата индексирования: Tue Oct 2 07:09:16 2012 Кодировка: |
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.
By passing a reference as third argument, similar_text() will calculate the similarity in percent for you. It returns the number of matching chars in both strings.