按您所说改成这样: class db { function sql($sql){ global $conn; $query = $mysql_query($sql); $rs = mysql_fetch_array($query); return $rs; mysql_free_result($query); } } $db=new db;function Listname(){ global $db; $id = ourphp_Cut(intval($weburl[2])); $rs = $db->sql("select title from `column` where id = ".$id); return $rs[0]; } 可还是不行 报错:Notice: Undefined variable: mysql_query Fatal error: Function name must be a string in
按照您所说的 报错Fatal error: Call to a member function query() on a non-object 我把query()改成mysql_query就报Fatal error: Call to a member function mysql_query() on a non-object in 这是什么意思呢
改成
$query =mysql_query($sql,$conn);
这行放到 Listname函数里面去,或者说在Listname函数中调用到$db之前用global把$db全局化。
你既然在sql函数中使用了global关键字全局化了$conn变量,说明你是知道作用域的,怎么还会犯这样的错误
按您所说改成这样:
class db
{ function sql($sql){
global $conn;
$query = $mysql_query($sql);
$rs = mysql_fetch_array($query);
return $rs;
mysql_free_result($query);
}
}
$db=new db;function Listname(){
global $db;
$id = ourphp_Cut(intval($weburl[2]));
$rs = $db->sql("select title from `column` where id = ".$id);
return $rs[0];
}
可还是不行
报错:Notice: Undefined variable: mysql_query
Fatal error: Function name must be a string in
按照您所说的 报错Fatal error: Call to a member function query() on a non-object 我把query()改成mysql_query就报Fatal error: Call to a member function mysql_query() on a non-object in 这是什么意思呢
$query = mysql_query($sql); 解决了