如何在PHP中合并两个类？

Question

使最终类有两个类

所有成员变量/方法有没有一种简单的方法去吗？

Answer 1

您应该封装中含有类两个类别，并提供了相应的接口（如私有变量

class YourFirstClass { 
    public $variable; 
    private $_variable2; 
    public function setVariable2($a) { 
     $this->_variable2 = $a; 
    } 
} 

class YourSecondClass { 
    public $variable; 
    private $_variable2; 
    public function setVariable2($a) { 
     $this->_variable2 = $a; 
    } 
} 

class ContaingClass { 
    private $_first; 
    private $_second; 
    public function __construct(YourFirstClass $first, YourSecondClass $second) { 
     $this->_first = $first; 
     $this->_second = $second; 
    } 
    public function doSomething($aa) { 
     $this->_first->setVariable2($aa); 
    } 
} 

研究（谷歌）制定者/吸气：“组成了继承”

脚注：对于非创造性的变量名称感到抱歉。

Answer 2

您是要求在运行时或编程时执行此操作吗？
我将假定运行时，在这种情况下使用c1有什么问题屁股inheritance？
创建一个从您想要合并的两个继承的新类。

Answer 3

# Merge only properties that are shared between the two classes into this object. 
public function conservativeMerge($objectToMerge) 
{ 
    # Makes sure the argument is an object. 
    if(!is_object($objectToMerge)) 
     return FALSE; 

    # Used $this to make sure that only known properties in this class are shared. 
    # Note: You can only iterate over an object as of 5.3.0 or greater. 
    foreach ($this as $property => $value) 
    { 
     # Makes sure that the mering object has this property. 
     if (isset($objectToMerge->$property)) 
     { 
      $objectToMerge->$property = $value; 
     } 
    } 
} 


# Merge all $objectToMerge's properties to this object. 
public function liberalMerge($objectToMerge) 
{ 
    # Makes sure the argument is an object. 
    if(!is_object($objectToMerge)) 
     return FALSE; 

    # Note: You can only iterate over an object as of 5.3.0 or greater. 
    foreach ($objectToMerge as $property => $value) 
    { 
     $objectToMerge->$property = $value; 
    } 
} 

你首先应该考虑的方法，就好像它在那里的array_combine()的对象对应。然后考虑第二种方法，就好像它在array_merge()的对象所在的位置。