php - 从字符串中删除特定单词

Question

我想从字符串中删除字符串中的整个单词。

我创建了一组禁用词:

$wordlist = array("or", "and", "where", ...)

现在我删除这些词:

foreach($wordlist as $word)
$string = str_replace($word, "", $string);

问题是上面的代码还删除了包含“sand”或“more”等禁用词的词。

Answer 1

为此，您可以使用 preg_replace和单词边界:

$wordlist = array("or", "and", "where");

foreach ($wordlist as &$word) {
    $word = '/\b' . preg_quote($word, '/') . '\b/';
}

$string = preg_replace($wordlist, '', $string);

编辑:Example .