Question

我试图通过使用getCity（）函数来获取cit名称，但遗憾的是它不适用于我。请帮忙。

$sql =("
    SELECT
        distinct orders.id as 'Order Id',
        users.email,
        orders.price as 'Amount', 
        orders.at as 'Date and Time',
        '".getCity($id)."' as 'CITY'
    FROM users, orders, order_history, users_address
    WHERE
        users.id = order_history.uid
        AND orders.id = order_history.oid 
        AND orders.real = 1 AND orders.price > 1
        AND orders.payment_status = 1 AND orders.status = 1
    ORDER BY orders.id;
");

Answer 1

您只能使用此功能的结果：

def __init__(self, parent=None):
    super(Program, self).__init__(parent)
    ...code... 
    self.connect(self.showDetailsButton, SIGNAL("clicked()"), self.showTextBrowser)      
    self.textBrowser.hide() #hide the textbrowser by default
    self.resize(461, 200)
    self.connect(self.hideDetailsButton, SIGNAL("clicked()"), self.hideTextBrowser)
    self.hideDetailsButton.hide() #hide the hideDetailsButton by default
...code...

def showTextBrowser(self): 
    self.textBrowser.show()
    self.hideDetailsButton.show()
    self.showDetailsButton.hide()
    self.resize(461, 444)

def hideTextBrowser(self): 
    self.textBrowser.hide()
    self.showDetailsButton.show()
    self.hideDetailsButton.hide()
    self.resize(461, 200)
...code...

在这种情况下，$result = getCity($id); $sql =(" SELECT distinct orders.id as 'Order Id', users.email, orders.price as 'Amount', orders.at as 'Date and Time', '$result' as 'CITY' FROM users, orders, order_history, users_address WHERE users.id = order_history.uid AND orders.id= order_history.oid AND orders.real = 1 AND orders.price > 1 AND orders.payment_status = 1 AND orders.status = 1 order by orders.id; ");只能是字符串。始终是相同的字符串 - 对于您可以从DB获得的每一行。

如果$result是列的名称，则应在查询中不加$result。

我可以在mysql select语句中使用Php函数吗？

1 个答案: