PHP USES method overloading to implement get and set methods for dynamically creating properties

In PHP, we can't override methods directly by signing different methods with the same method name, because PHP is a weak data type and doesn't distinguish signatures well. However, you can use the call() method to implement method reloading in your PHP classes. When calling a method that does not exist in a class, the method is called automatically with the form of arbitration call($name,$arguments) where $name is the name of the method and $arguments is an argument of type array.

The following example USES PHP's method overloading to dynamically create get and set methods. In object-oriented programming, properties in a class are assigned by get and set, but if there are too many properties in a class, like 30, then we need to write 30 set methods and 30 get methods without method overloading.

<?php

class person

{

 private $name;

 private $age;

 private $address;

 private $school;

 private $phonenum;

 public function __call($method,$args)

 {

  $perfix=strtolower(substr($method,0,3));

  $property=strtolower(substr($method,3));

  if(empty($perfix)||empty($property))

  {

   return;

  }

  if($perfix=="get"&&isset($this->$property))

  {

   return $this->$property;

  }

  if($perfix=="set")

  {

   $this->$property=$args[0];

  }

 }

}

$p=new person();

$p->setname('lvcy');

$p->setage(23);

$p->setAddress(chengdu);

$p->setschool('uestc');

$p->setphonenum('123456');

echo $p->getname().'\n';

echo $p->getage().'\n';

echo $p->getaddress().'\n';

echo $p->getschool().'\n';

?>

Instead of writing a get set method for each property, you can easily solve this problem by using the successive call () method.