Something

function edit_user() {		  	// Updates a user's information in the database			$sql = "UPDATE `users` SET ";			foreach ($this->info as $key => $value){				 $sql.="`$key`='$value',";			}			$sql = rtrim($sql, ",");			$sql.=" WHERE `user_id`='$this->user_id';";			if ($res = mysql_query($sql)) {				$edit_user = true;			} else {				$edit_user = false;				$this->sql = $sql;			}			return $edit_user;		  }