Mysql的搜索用逗號分隔的字符串

Question

我已經1個MySQL表稱爲顏色與行ID和名

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

我怎樣才能獲得ID的數組，如果我有，例如，搜索字符串

["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：按以下丹的評論，此查詢不使用索引，將是一個大的錶慢。帶有IN的查詢更好：

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

Answer 2

$array = explode(",", $colors); 
$search = impode("', '". $array); 

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

$result = mysql_query($sql); 

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

Answer 3

試試這個

$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