$query = $this->db->query('SELECT * FROM orders where product_id=0 and order_status=10 and site_id ="'.$sid.'"');
$row =$query->num_rows();
为什么程序里面执行没有返回值呢,在mysql中执行时有 数据的啊
$row =$query->num_rows();
为什么程序里面执行没有返回值呢,在mysql中执行时有 数据的啊
<?php$link = mysql_connect("localhost", "mysql_user", "mysql_password");
mysql_select_db("database", $link);$result = mysql_query("SELECT * FROM table1", $link);
$num_rows = mysql_num_rows($result);echo "$num_rows Rows\n";?>