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Example code of edgaras/strsim

Informations about the package strsim

StrSim

A collection of string similarity and distance algorithms implemented in PHP. This library provides standalone static methods for computing various similarity metrics, useful in natural language processing, fuzzy matching, spell checking, and bioinformatics.

Requirements

Installation

  1. Use the library via Composer:

  2. Include the Composer autoloader:

Supported Algorithms

Class Method Description
Levenshtein distance() Measures the number of insertions, deletions, or substitutions.
DamerauLevenshtein distance() Levenshtein with transpositions included.
Hamming distance() Counts differing positions (requires equal-length strings).
Jaro distance() Measures similarity based on character matches and transpositions.
JaroWinkler distance() Jaro with a prefix match boost for similar string starts.
LCS length() Returns the length of the longest common subsequence.
SmithWaterman score() Local alignment scoring for best-matching subsequences.
NeedlemanWunsch score() Global alignment scoring for entire string similarity.
Cosine similarity() Measures similarity via character frequency vectors.
Cosine similarityFromVectors() Computes cosine similarity for numeric vector inputs.
Jaccard index() Ratio of shared to total unique characters.
MongeElkan similarity() Average best-word similarity using Jaro-Winkler internally.

Usage

Useful links

All versions of strsim with dependencies

PHP Build Version
Package Version
Requires php Version >=8.3.0
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