Question

我有1个名为 colors 的mysql表，行 id 和名称

1 - yellow
2 - black
3 - red
4 - green
5 - white
6 - blue

如果我有搜索字符串

，我怎样才能获得ID数组

["colors"]=> string(14) "blue,red,white"

Answer 1

http://dev.mysql.com/doc/refman/5.0/en/string-functions.html#function_find-in-set

select id from tab where find_in_set(name, '$colors') > 0

注意：根据Dan的评论，此查询不使用索引，并且在大型表上会很慢。使用IN的查询更好：

select id from tab where name IN ('blue', 'red', 'white')

Answer 2

$array = explode(",", $colors);
$search = implode("', '", $array); // implode instead of impode

$sql = "
SELECT
  id,
  name
FROM
  colors
WHERE
  name IN ('$search')
";

$result = mysql_query($sql);

while ($row = mysql_fetch_array($result)) {
    //do something with the matches
}

Answer 3

试试这个

$colors = "blue,red,white";

// Exploding string to array
$colors = explode($colors, ',');
$colors_list = array();
foreach($colors as &$color)
{
   // Escaping every element
   $colors_list[] = "'".mysql_real_escape_string($color)."'";
}

// Executing the query
$query = mysql_query('SELECT `id` FROM `colors` WHERE `name` IN ('.implode(', ', $colors_list).')');

http://php.net/manual/en/function.explode.php

http://php.net/manual/en/function.implode.php

用逗号分隔的字符串进行Mysql搜索

3 个答案: