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<?php |
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namespace GeoFixer\helpers; |
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/** |
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* Class FuzzySearchHelper |
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* |
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* @package GeoFixer\helpers |
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*/ |
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class FuzzySearchHelper |
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{ |
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public $max_similarity; |
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public $meta_similarity; |
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public $min_levenshtein; |
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public $meta_min_levenshtein; |
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public $result_array = []; |
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public $words_array = []; |
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/** |
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* Строгий поиск |
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* |
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* @param $word |
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* @param $translited_words |
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* |
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* @return bool|mixed |
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*/ |
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public function findBestMatch($word, $translited_words) |
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{ |
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$this->refreshVariables(); |
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array_walk($translited_words, array($this, 'strictWordsLevenshteinHandlerCallback'), $word); |
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$most_similar = $this->findMostSimilarWords($word, $this->words_array); |
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array_walk($most_similar, array($this, 'findFinalSimilirityAndLevenshtein'), $word); |
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array_walk($most_similar, array($this, 'strictSimilarityCallback'), $word); |
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if (is_null(key($this->result_array))) { |
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return false; |
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} |
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return key($this->result_array); |
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} |
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/** |
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* Нестрогий поиск |
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* |
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* @param $word |
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* @param $words_array |
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* @return array |
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*/ |
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public function findMostSimilarWords($word, $words_array) |
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{ |
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$this->refreshVariables(); |
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array_walk($words_array, array($this, 'similarityCallback'), $word); |
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return $this->result_array; |
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} |
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/** |
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* Вспомогательный метод для findBestMatch |
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* |
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* @param $item |
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* @param $key |
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* @param $word |
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*/ |
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private function findFinalSimilirityAndLevenshtein($item, $key, $word) |
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{ |
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$this->meta_min_levenshtein = min($this->meta_min_levenshtein, levenshtein(metaphone($item), metaphone($word))); |
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if (levenshtein($item, $word) == $this->meta_min_levenshtein) { |
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$this->meta_similarity = max($this->meta_similarity, similar_text(metaphone($item), metaphone($word))); |
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} |
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} |
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/** |
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* Вспомогательный метод для findBestMatch |
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* |
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* @param $latin |
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* @param $russian |
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* @param $word |
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*/ |
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private function strictSimilarityCallback($latin, $russian, $word) |
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{ |
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if (levenshtein(metaphone($latin), metaphone($word)) <= $this->meta_min_levenshtein) { |
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if (similar_text(metaphone($latin), metaphone($word)) >= $this->meta_similarity) { |
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$this->result_array[$russian] = $latin; |
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} |
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} |
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} |
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/** |
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* Вспомогательный метод для findBestMatch |
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* |
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* @param $translit |
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* @param $russian |
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* @param $word |
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*/ |
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private function strictWordsLevenshteinHandlerCallback($translit, $russian, $word) |
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{ |
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if (levenshtein(metaphone($word), metaphone($translit)) < mb_strlen(metaphone($word)) / 2) { |
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if (levenshtein($word, $translit) < mb_strlen($word) / 2) { |
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$this->words_array[$russian] = $translit; |
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} |
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} |
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} |
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/** |
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* Вспомогательный метод для findMostSimilarWords |
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* |
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* @param $translit |
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* @param $russian |
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* @param $word |
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*/ |
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private function similarityCallback($translit, $russian, $word) |
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{ |
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if (levenshtein($translit, $word) <= $this->min_levenshtein) { |
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if (similar_text($translit, $word) >= $this->max_similarity) { |
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$this->result_array = []; |
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$this->min_levenshtein = levenshtein($translit, $word); |
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$this->max_similarity = similar_text($translit, $word); |
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$this->result_array[$russian] = $translit; |
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} |
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} |
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} |
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/** |
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* Refresh variables |
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*/ |
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private function refreshVariables() |
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{ |
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$this->max_similarity = 0; |
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$this->meta_similarity = 0; |
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$this->min_levenshtein = 1000; |
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$this->meta_min_levenshtein = 1000; |
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} |
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} |
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Phrlog /
GeoFixer
