mysql - 和，喜欢和/或组合

Question

我需要这样的东西：

$tags = array('sky', 'earth', 'blue', 'green');  // this varies each time

$st = $db->query("
select id from images where width > 960
and height > 540
and tags like '%" . any of $tags element . "%'");

问题是最后一行 - 怎么说呢 有什么帮助吗？

Answer 1

添加：

AND tags IN implode('","', $tags)

而不是像

这将使$ tags数组字符串并在其间放置一个komma。

结果是：

$st = $db->query('
select id from images where width > 960
and height > 540
and tags IN ("' . implode('","', $tags) . '")';

Answer 2

试试这个，

$tags = array('sky', 'earth', 'blue', 'green');  // this varies each time

$sql = []; // Stop errors when $words is empty

foreach ($tags as $tag => $value) { 
   $sql[] = 'tags LIKE "%' . $value . '%"';
}

//create SQL string
$sql = 'select id from images where width > 960 and height > 540 and ' .implode(" OR ", $sql);

$st = $db->query($sql);

Answer 3

$tags = array('sky', 'earth', 'blue', 'green');  // this varies each time
$tag_str="";
foreach($tags as $tag){
$tag_str.=" tags like '%" . $tag . "%' OR ";
}
$tag_str=rtrim($tag_str,"OR ");
$st = $db->query("
select id from images where width > 960
and height > 540
and (".$tag_str.")");