Question

我有一个简单的mysql搜索功能，可以搜索我想要扩展的条目标题，以便能够搜索部分单词......

例如，我说我搜索：取消

目前它将返回标题中带有单词cancel的任何内容。但理想情况下，它还应该在标题中返回带有取消的字样。

这是我到目前为止所拥有的......

function search_title_body($q){
    $q = '+' . $q;
    $q = str_replace(' ', '+', $q);
    $q = "+(".$q.")";

    $query = "SELECT *,
              MATCH(title) AGAINST('$q' IN BOOLEAN MODE) AS score
              FROM results
              WHERE (MATCH(title) AGAINST('$q' IN BOOLEAN MODE))
              AND (published = 1)
              ORDER BY score DESC";

    $query = $this->db->query($query);

    $results = array();


    foreach ($query->result() as $row){
        $results[] = $row;
    }

    return $results;
}

有人能指出我正确的方向吗？非常感谢您的帮助：）

Answer 1

怎么样？

SELECT *,
MATCH(title) AGAINST('$q' IN BOOLEAN MODE) AS score
FROM results
WHERE title LIKE '%$q%'
AND published = 1
ORDER BY score DESC

Answer 2

我认为您正在寻找的是LIKE或ILIKE功能

$q = "somestring";
 $query = "SELECT *,              
          FROM results
          WHERE title ILIKE '%$q%'
          AND (published = 1)
          ORDER BY score DESC";

另外为什么要制作一个匹配列，num_rows会给你一些命中数。

Answer 3

您可以使用like语句构建$ q以获取此类查询

SELECT * FROM results
WHERE title like '%cancel%' OR title like '%otherword%'
AND (published = 1)
ORDER BY score DESC

从数据库中搜索部分单词

3 个答案: