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Website Programming in PHP / MYSQL
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.
