Example of get and set methods for dynamically created properties in PHP

in PHP, we are not able to implement method overloading directly by signing different methods with the same method name, because PHP is weakData type , the signature cannot be distinguished well. However, you can implement method overloading by using the call () method in a class in PHP. When a method that does not exist in a class is called, the call () method is automatically called, in the form of call ($name, $arguments) where $name is the name of the method, $arguments is an array-type parameter.

The following example uses PHP's method overloads to dynamically create the get and set methods. (in object-oriented programming, a property in a class uses get and set to assign a value, but if there are too many properties in a class, such as 30, then if you do not use the method overload, we need to write 30 set methods, 30 get methods, self side slowly write it ... )

The code is as follows:

<?phpclass person{private $name; private $age; private $address; private $school; private $phonenum; public Function C All ($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; $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 ';? >

The call () method solves this problem easily, rather than writing a Get set method for each property.