多个字段中多个关键字的MySql SELECT查询

时间:2015-09-25 16:40:52

标签: php mysql select match against

我需要一些SELECT查询逻辑的帮助,希望有人能给我一个比我更好的想法。

我有一张这样的表:

 +---------+----------+---------+-----------+
 |      id | model    | variant | category  |
 +---------+----------+---------+-----------+
 |       1 | round    | black   | fruit     |
 |       2 | square   | white   | vegetable |
 |       3 | flat     | red     | meat      |
 |       4 | round    | black   | meat      |
 +---------+----------+---------+-----------+

通过输入一个或多个关键字,用户可以在此表上进行搜索。

我现在的查询对每个字段的所有输入关键字MATCH执行了AGAINST,并且获得了与任意关键字匹配的行。 因此,如果输入是“圆肉”,则结果将是第1,3和4行:

SELECT v.*, vt.color 
            FROM tbl_items 
            AS v 
            LEFT JOIN tbl_apple 
            AS vt 
            ON v.id = vt.v_id 
            WHERE ( 
            MATCH (v.model) AGAINST ('keyword1 keyword2' IN BOOLEAN MODE) 
            OR MATCH (v.variant) AGAINST ('keyword1 keyword2' IN BOOLEAN MODE) 
            OR MATCH (v.category) AGAINST ('keyword1 keyword2 ' IN BOOLEAN MODE) ) 
            AND v.type = 4

但是,我只需要返回包含ALL关键字的行。关键字可能包含在三列中的任何一列中。

因此,如果用户输入“圆肉”,则仅返回第4行。

我目前的想法很简单,可能不太好(我希望多个关键字有一些性能问题):

SELECT v.*, vt.color 
            FROM tbl_items 
            AS v 
            LEFT JOIN tbl_apple 
            AS vt 
            ON v.id = vt.v_id 
            WHERE 
                ( 
                     (v.model = 'keyword1' 
                   OR v.variant = 'keyword1' 
                   OR v.category = 'keyword1'
                     ) 
        AND 
                     (v.model = 'keyword2' 
                   OR v.variant = 'keyword2' 
                   OR v.category = 'keyword2'
                     )
                 ) 
            AND v.type = 4

有更好的方法吗?

1 个答案:

答案 0 :(得分:1)

这是一个可以帮助您的完整代码。" 您可以根据数据库或要求修改查询。

    <?php
define('DB_SERVER', 'localhost');
define('DB_USERNAME', 'root');
define('DB_PASSWORD', '');
define('DB_DATABASE', 'test');
$db = mysqli_connect(DB_SERVER,DB_USERNAME,DB_PASSWORD,DB_DATABASE);

if(isset($_POST['submit']))
{
    $search_text = $_POST['text'];

    $values = explode(" ",$search_text);

    $query = "";
    foreach($values as $value)
    {
        $query .='concat(model,varient,category) like "%'.$value.'%" AND ';
    }

    $query .= "1=1";

    $query = "select * from tbl_items where ".$query."";
    $result= mysqli_query($db,$query);
    echo '<table>';
    while($row=mysqli_fetch_array($result))
    {
        echo '<tr>';
        echo '<td>'.$row['model'].'</td><td>'.$row['varient'].'</td><td>'.$row['category'].'</td>';
        echo '</tr>';
    }
echo '</table>';
}
?>
<form method="post" name="form">
<input type="text" name="text" />
<input type="submit" value="submit" name="submit">  
</form>