在多行中搜索 SQL LIKE 中的字符串

Search string in SQL LIKE in multiple rows

我正在尝试进行 "related products" 查询以搜索 5 个相关产品,但出现以下错误: 错误图片:http://puu.sh/eeo5n/a845ef5ba3.png

这是我的代码

    // Info current t-shirt. Normally from database
    $name = "Luftrauser T-shirt";
    $description = "Stylish LUFTRAUSERS T-shirt designed by Amon26.";
    $relatedSearch = $name . $description;

    // Query which searches for related items
    $query = $db->prepare("SELECT * FROM tbl_products WHERE name, description LIKE '%:relatedSearch%'");
    $query -> bindParam("relatedSearch", $relatedSearch, PDO::PARAM_STR);
    if($query -> execute()) {
        while($related = $query->fetch(PDO::FETCH_OBJ)) {
            echo $related->title . "</br>";
        }
    }

为什么 return 包含我使用 LIKE 搜索的值的行?

如果您希望搜索在名称和描述中查找并匹配其中一个

SELECT * 
FROM tbl_products 
WHERE description LIKE '%:relatedSearch%' OR name LIKE '%:relatedSearch%'

如果您希望搜索查找名称和描述并匹配两者

SELECT * 
FROM tbl_products 
WHERE description LIKE '%:relatedSearch%' AND name LIKE '%:relatedSearch%'