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PHP Similar Text Percentage: Compare two strings to compute a similarity score
Library which help to Compare two strings to compute a similarity score and get stats on how linked are the strings.
Requires: PHP 5.3+
What this library exactly does?
this library can compare two strings to compute a similarity score.
It takes the text of two strings and analyze them using pure PHP code to evaluate how equal they are.
The class returns a number that represents a percentage of the two strings to tell the level of similarity.
Based on the stats provided It actually can help to detect similarity even if these cases occurred : WORD REORDER,WHITESPACE AND PUNCTUATION,REMOVE WORDS,ADD WORDS,URL STRIPPING, FORM ACRONYM,EXPAND ACRONYM,STEMMING,SUBSTRING ,SUPERSTRING,ABBREVIATION ,ANAGRAM
How to use it
Require the library by issuing this command:
Next, use it in your script, just like this:
This is an example of how to use the stats to check a special case.Here we will use them to check about anagrams (note that this has already been implemented in the library check the file similar_text.php to know more about all available implementations)
Nb: some functions and methods are more subtle than one can think. For example the method simpleCommonTextSimilarities::aIsSuperStringOfB and its helper aIsSuperStringOfB are not at all equal to the usual checking functions built on top of preg_match ,stripos and PHP similar functions
a simple example is :
The library also contains common distance algorithms such unlimited string length levenshtein ,levenshtein-damerau ,jaro ,jaro-winkler ,hamming ,dice implementation
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