Well, PHP does have magic methods __get, __set, __isset & __unset, which is always a start. Alas proper (get it?) OO properties is more than magic methods. The main problem with PHP's implementation is that magic methods are called for all inaccessible properties. Which means you have to Repeat Yourself (eg. by calling property_exists()) in the magic methods when determining if name is actually a property of your object. And you can't really solve this general problem with a base class unless all your classes inherit from ie. ClassWithProperties, since PHP lacks multiple inheritance.

相比之下，Python的新样式类提供了property()，它允许显式地定义所有属性。c#有特殊的语法。

http://en.wikipedia.org/wiki/Property_(编程)

一般来说，第一种方法总体上更受欢迎，因为具有编程知识的人可以轻松地转换到PHP，并以面向对象的方式完成工作。第一种方法更为普遍。我的建议是坚持使用在许多语言中都行之有效的方法。然后，当你使用另一种语言时，你将准备好完成一些事情(而不是花时间重新发明轮子)。

如果你喜欢使用__call函数，你可以使用这个方法。它适用于

GET => $this->属性() SET => $this->属性($value) getProperty() => $this-> SET => $this->setProperty($value)

kalsdas

public function __call($name, $arguments) {

    //Getting and setting with $this->property($optional);

    if (property_exists(get_class($this), $name)) {


        //Always set the value if a parameter is passed
        if (count($arguments) == 1) {
            /* set */
            $this->$name = $arguments[0];
        } else if (count($arguments) > 1) {
            throw new \Exception("Setter for $name only accepts one parameter.");
        }

        //Always return the value (Even on the set)
        return $this->$name;
    }

    //If it doesn't chech if its a normal old type setter ot getter
    //Getting and setting with $this->getProperty($optional);
    //Getting and setting with $this->setProperty($optional);
    $prefix = substr($name, 0, 3);
    $property = strtolower($name[3]) . substr($name, 4);
    switch ($prefix) {
        case 'get':
            return $this->$property;
            break;
        case 'set':
            //Always set the value if a parameter is passed
            if (count($arguments) != 1) {
                throw new \Exception("Setter for $name requires exactly one parameter.");
            }
            $this->$property = $arguments[0];
            //Always return the value (Even on the set)
            return $this->$name;
        default:
            throw new \Exception("Property $name doesn't exist.");
            break;
    }
}

在阅读了其他建议后，我倾向于这样说:

作为GENERIC规则，你不会总是为所有属性定义setter，特别是“内部”属性(信号量、内部标志……)。只读属性显然没有setter，所以有些属性只有getter;这就是__get()缩小代码的地方:

define a __get() (magical global getters) for all those properties which are alike, group them in arrays so: they'll share common characteristics: monetary values will/may come up properly formatted, dates in an specific layout (ISO, US, Intl.), etc. the code itself can verify that only existing & allowed properties are being read using this magical method. whenever you need to create a new similar property, just declare it and add its name to the proper array and it's done. That's way FASTER than defining a new getter, perhaps with some lines of code REPEATED again and again all over the class code.

是的!我们也可以写一个私有方法来做到这一点，但话又说回来，我们将声明许多方法(++内存)，最终调用另一个总是相同的方法。为什么不写一个单一的方法来管理它们呢?(是的!双关语!)):

Magic setter也可以只响应特定的属性，因此可以单独在一个方法中筛选所有日期类型属性的无效值。如果日期类型属性列在数组中，则可以轻松定义它们的setter。当然，这只是一个例子。有太多的情况。

About readability... Well... That's another debate: I don't like to be bound to the uses of an IDE (in fact, I don't use them, they tend to tell me (and force me) how to write... and I have my likes about coding "beauty"). I tend to be consistent about naming, so using ctags and a couple of other aids is sufficient to me... Anyway: once all this magic setters and getters are done, I write the other setters that are too specific or "special" to be generalized in a __set() method. And that covers all I need about getting and setting properties. Of course: there's not always a common ground, or there are such a few properties that is not worth the trouble of coding a magical method, and then there's still the old good traditional setter/getter pair.

编程语言就是人类的人工语言。因此，它们都有自己的语调或重音、语法和风格，所以我不会假装用与Java或c#相同的“重音”来编写Ruby或Python代码，也不会编写类似Perl或SQL的JavaScript或PHP……用他们该用的方式去使用他们。

你可以使用php神奇的方法__get和__set。

<?php
class MyClass {
  private $firstField;
  private $secondField;

  public function __get($property) {
    if (property_exists($this, $property)) {
      return $this->$property;
    }
  }

  public function __set($property, $value) {
    if (property_exists($this, $property)) {
      $this->$property = $value;
    }

    return $this;
  }
}
?>

class MyClass {
    private $firstField;
    private $secondField;
    private $thirdField;

    public function __get( $name ) {
        if( method_exists( $this , $method = ( 'get' . ucfirst( $name  ) ) ) )
            return $this->$method();
        else
            throw new Exception( 'Can\'t get property ' . $name );
    }

    public function __set( $name , $value ) {
        if( method_exists( $this , $method = ( 'set' . ucfirst( $name  ) ) ) )
            return $this->$method( $value );
        else
            throw new Exception( 'Can\'t set property ' . $name );
    }

    public function __isset( $name )
    {
        return method_exists( $this , 'get' . ucfirst( $name  ) ) 
            || method_exists( $this , 'set' . ucfirst( $name  ) );
    }

    public function getFirstField() {
        return $this->firstField;
    }

    protected function setFirstField($x) {
        $this->firstField = $x;
    }

    private function getSecondField() {
        return $this->secondField;
    }
}

$obj = new MyClass();

echo $obj->firstField; // works
$obj->firstField = 'value'; // works

echo $obj->getFirstField(); // works
$obj->setFirstField( 'value' ); // not works, method is protected

echo $obj->secondField; // works
echo $obj->getSecondField(); // not works, method is private

$obj->secondField = 'value'; // not works, setter not exists

echo $obj->thirdField; // not works, property not exists

isset( $obj->firstField ); // returns true
isset( $obj->secondField ); // returns true
isset( $obj->thirdField ); // returns false

准备好了!