Question

我在PHP中使用MVC模式。 MVC模式限制您在类中调用方法。据我所知，我不能在课堂范围之外工作。

如何将变量传递给函数？我找到的唯一可以声明变量的地方是函数内部。这使得函数static无法重复使用！

示例：

class usersModel {
    function q(){
        $sql = "SELECT * FROM users WHERE fname='eli'";
        $result1 = $this->conn->query($sql);
        $result2 = $result1->fetch_assoc();
        $fname = ($result2['fname']);
        return $fname;
    }
}

之后，当我在另一个类中创建该类的对象时：

$model = usersModel();
$result = $model->q();

我将在哪里声明变量$sql，以便我不必将其包含在函数中？

Answer 1

你必须声明函数public然后你可以访问类之外的方法并将sql param传递给方法。

 class usersModel {
    public function q($sql){ 
          $result1 = $this->conn->query($sql);
          $result2 = $result1->fetch_assoc(); 
          $fname = ($result2['fname']); 
          return $fname; 
     }

 }

$sql = "SELECT * FROM users WHERE fname='eli'"; 

$user = new usersModel();
$user->q($sql);

Answer 2

大家好，感谢您的投入！

这是我正在寻找的答案 - 我必须将变量作为类外的常量进行处理，以便类中的方法能够达到它！

Sub CreateWordDocument()

'Connect using Early Binding.
'Remember to set the reference to the Word Object Library
'In VBE Editor Tools -> References -> Microsoft Word x.xx Object Library
Dim WordApp As Word.Application
Set WordApp = New Word.Application

WordApp.Documents.Add Template:="Normal", NewTemplate:=False, DocumentType:=0
WordApp.Visible = True 'New Apps will be hidden by default, so make visible

'code copied from Excel Macro recorder
 Sheets("Appointment letter").Select
    Range("A1:O39").Select
    Selection.Copy


'code copied from Word Macro recorder with WordApp. added to the front.
WordApp.Selection.PasteAndFormat (wdPasteDefault)

With The_WordDoc.Styles("Normal").ParagraphFormat
.SpaceBefore = 0
.SpaceBeforeAuto = False
.SpaceAfter = 0
.SpaceAfterAuto = False
.LineSpacingRule = wdLineSpaceSingle

The_WordDoc.Styles("Normal").NoSpaceBetweenParagraphsOfSameStyle = _
  False
With The_WordDoc.Styles("Normal")
  .AutomaticallyUpdate = False
  .BaseStyle = ""
  .NextParagraphStyle = "Normal"
End With

Set WordApp = Nothing 'release the memory

End Sub

在MVC模式中将变量传递给类

2 个答案: