数组中的SQL select IN子句？

Question

我有一个列表

$list = array('a','b','c','d','e','f'); 
$filter_list = join(", " $list); 
select * from test where id_col=12 and try_col in ($filter_list); 

谁都看得出我怎样才能做到这一点？

Answer 1

$list = array('a','b','c','d','e','f'); 
$filter_list = "'" . join("', '", $list) . "'"; 
$query = "select * from test where id=12 and try_col in ($filter_list)"; 
// select * from test where id=12 and try_col in ('a', 'b', 'c', 'd', 'e', 'f') 

请注意，如果您的数组值包含'，则将失败。这是一种解决方法：

$list = array("a'a",'a\a','b','c','d','e','f'); 
$temp = array_map("addslashes", $list); 
$query = "SELECT * FROM test WHERE id=12 AND try_col in ('" . implode("','", $temp) . "')"; 
// SELECT * FROM test WHERE id=12 AND try_col in ('a\'a','a\\a','b','c','d','e','f')