（php）變量類

Question

我有一組變量，我需要多個其他類。我擴展了一個'漂亮'的getter函數（它猜測var的名字並且隨時產生'set'/'get'函數）來與setters一起工作。

實施例：

在接口/父母/不管：public $name;

在加載 'mySetterGetter' 類一些其他類：$set_get = new mySetterGetter(); $set_get->get_name();。

不幸的是我不能在一個接口中使用變量，並且不能使用多個父類來擴展一個類。有沒有其他方法來加載這些「接口」/擴展Set/Get類？

我需要做的是以下幾點：

// This should be my "interface" one 
class myIntegerInterface 
{ 
public $one; 
public $two; 
public $three; 
} 
// This should be my "interface" two 
class myStringInterface 
{ 
public $foo; 
public $bar; 
public $whatever; 
} 

// This is my setter/getter class/function, that needs to extend/implement different variable classes 
class mySetterGetter implements myIntegerInterface, myStringInterface 
{ 
/** 
* Magic getter/setter method 
* Guesses for a class variable & calls/fills it or throws an exception. 
* Note: Already defined methods override this method. 
* 
* Original @author Miles Keaton <mileskeaton@gmail.com> 
* on {@link http://www.php.net/manual/de/language.oop5.overloading.php#48440} 
* The function was extended to also allow 'set' tasks/calls. 
* 
* @param (string) $val | Name of the property 
* @param unknown_type $x | arguments the function can take 
*/ 
function __call($val, $x) 
{ 
    $_get = false; 

    // See if we're calling a getter method & try to guess the variable requested 
    if(substr($val, 0, 4) == 'get_') 
    { 
     $_get = true; 
     $varname = substr($val, 4); 
    } 
    elseif(substr($val, 0, 3) == 'get') 
    { 
     $_get = true; 
     $varname = substr($val, 3); 
    } 

    // See if we're calling a setter method & try to guess the variable requested 
    if(substr($val, 0, 4) == 'set_') 
    { 
     $varname = substr($val, 4); 
    } 
    elseif(substr($val, 0, 3) == 'set') 
    { 
     $varname = substr($val, 3); 
    } 

    if (! isset($varname)) 
     return new Exception("The method {$val} doesn't exist"); 

    // Now see if that variable exists: 
    foreach($this as $class_var => $class_var_value) 
    { 
     if (strtolower($class_var) == strtolower($varname)) 
     { 
      // GET 
      if ($_get) 
      { 
       return $this->class_var_value; 
      } 
      // SET 
      else 
      { 
       return $this->class_var_value = $x; 
      } 
     } 
    } 

    return false; 
} 
} 

Answer 1

這聽起來像你想是這樣的：

// An abstract class that can't be instantiated but which provides a __call method to other classes that extend this one. 
abstract class mySetterGetter 
{ 
    function __call($val, $x) 
    { 
    $_get = false; 

    // See if we're calling a getter method & try to guess the variable requested 
    if(substr($val, 0, 4) == 'get_') 
    { 
     $_get = true; 
     $varname = substr($val, 4); 
    } 
    elseif(substr($val, 0, 3) == 'get') 
    { 
     $_get = true; 
     $varname = substr($val, 3); 
    } 

    // See if we're calling a setter method & try to guess the variable requested 
    if(substr($val, 0, 4) == 'set_') 
     $varname = substr($val, 4); 
    elseif(substr($val, 0, 3) == 'set') 
     $varname = substr($val, 3); 

    if (! isset($varname)) 
     throw new Exception("The method {$val} doesn't exist"); 

    // Now see if that variable exists: 
    foreach($this as $class_var => $class_var_value) 
    { 
     if (strtolower($class_var) == strtolower($varname)) 
     { 
     // GET 
     if ($_get) 
      return $this->class_var_value; 
     // SET 
     else 
     { 
      $this->class_var_value = $x[0]; 

      return; 
     } 
     } 
    } 

    return false; 
    } 
} 

// myString 
class myString extends mySetterGetter 
{ 
    public $foo; 
    public $bar; 
    public $whatever; 
} 

// myInteger 
class myInteger extends mySetterGetter 
{ 
    public $one; 
    public $two; 
    public $three; 
} 

你也可以「假」，由多個類在此之前的繼承堆棧溢出問題：Can I extend a class using more than 1 class in PHP?。