我试图在我的查询中使用 FOUND_ROWS() ,但该函数有时会返回错误的值。
SELECT SQL_CALC_FOUND_ROWS adminslog.*, admins.fullName FROM adminslog
JOIN admins ON admins.id=adminslog.userId ORDER BY date DESC LIMIT 0,12
在这个查询中,我得到了一些正确的值,但在其他查询中,限制的值是错误的。
LIMIT 0,12 164rows right
LIMIT 12,12 164rows right
LIMIT 36,12 164rows right
LIMIT 48,12 164rows right
LIMIT 50,12 60rows wrong
LIMIT 62,12 60rows wrong
这是我的类构造:
class list_table
{
public $number,$page_number,$all_rec,$table_rows,$query_str,$query,$fetch,$table,$db,$fields,$i=0,$page_n,$onclick;
function __construct($query_str,$fields,$page_n,$onclick,$page_number,$number,$db)
{
$this->fields = $fields; $this->page_number = (((int)$page_number<1)?1:(int)$page_number); $this->number = (int)$number; $this->db = $db;
$this->i = $this->page_number*$this->number-$this->number; $this->page_n = $page_n; $this->onclick = $onclick;
$this->query_str = substr(trim($query_str),0,7)."SQL_CALC_FOUND_ROWS ".substr(trim($query_str),7)." LIMIT ".(($this->page_number*$this->number)-$this->number).",".$this->number;
$this->query = $this->db->query($this->query_str);
$this->table_rows = $this->db->query("SELECT FOUND_ROWS()")->fetchColumn();
$this->all_rec = $this->query->rowCount();
$this->fetch = $this->query->fetch();
//$this->table_rows = $this->table_rows->fetch();
//$this->table_rows = $this->table_rows['cnt'];
print $this->table_rows;
}
other functions...
}