如何让php搜索相似的单词

$searchTerm = "apple";
$query = "SELECT word FROM words WHERE word LIKE '%{$searchTerm}%'";

$searchTerm = "apple";
$words = ["apple", "banana", "orange", "grape"];
$similarWords = [];

foreach ($words as $word) {
    similar_text($searchTerm, $word, $similarity);
    if ($similarity > 50) { // 设置一个相似度阈值
        $similarWords[] = $word;
    }
}

print_r($similarWords);

$searchTerm = "apple";
$words = ["apple", "banana", "orange", "grape"];
$similarWords = [];

foreach ($words as $word) {
    $distance = levenshtein($searchTerm, $word);
    if ($distance <= 2) { // 设置一个编辑距离阈值
        $similarWords[] = $word;
    }
}

print_r($similarWords);