Question

是否可以使用变量创建pdo查询？例如：

$q = "SELECT COUNT (*) c FROM blogpages WHERE keywords LIKE '%test%' ";

然后

$query = $db->query("$q");

$result = $query->fetch(PDO::FETCH_ASSOC);

当我这样做时，我收到错误

＆＃34;在C中的非对象上调用成员函数fetch（）.......＃34;

我想知道有没有办法将查询作为变量放在那里，因为查询根据查询中的OR语句数量而变化

Answer 1

query()

PDO :: query - 执行SQL语句，将结果集返回为 PDOStatement对象

您的查询中存在空格override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell { let cell = tableView.dequeueReusableCellWithIdentifier("displayImage", forIndexPath: indexPath) as! ImageTableViewCell cell.delegate = self return cell } func pickImage() { let imagePicker = UIImagePickerController() imagePicker.delegate = self imagePicker.sourceType = UIImagePickerControllerSourceType.PhotoLibrary imagePicker.allowsEditing = false self.presentViewController(imagePicker, animated: true, completion: nil) } func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image: UIImage, editingInfo: [String : AnyObject]?) { dismissViewControllerAnimated(true, completion: nil) var cell = tableView.cellForRowAtIndexPath(NSIndexPath(forRow: 0, inSection: 0)) as! ImageTableViewCell cell.displayImageView.image = image }

的问题

between count and (*)

因此无需仅使用

获取数据

SELECT COUNT (*)..
            ^^

将变量放入PDO语句中

1 个答案: