<?php function areWordsSimilar(string $word1, string $word2) { $word_sim = similar_text($word1, $word2, $word_perc); $meta_sim = similar_text(metaphone($word1), metaphone($word2), $meta_perc); $sndx_sim = similar_text(soundex_fr($word1), soundex_fr($word2), $sndx_perc); if ($word_perc >= 90 || $meta_perc >= 90 || $sndx_perc >= 90) { return true; } if ($word_perc >= 80 && $meta_perc >= 80 && $sndx_perc >= 80) { return true; } return false; }