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Factory design pattern PHP classes

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Factory design pattern PHP classes

<?php
interface IHuman
{
  function GetName();
}
class ManClass implements IHuman
{
  public function GetName()
  {
    return "I'm man."."<br>";
  }
}
class WomanClass implements IHuman
{
  public function GetName()
  {
    return "I'm Woman."."<br>";
  }
}

In object-oriented programming, the most common method is a new operator to generate an object instance, and the new operator is used to construct an object instance. But in some cases, the new operator directly generating objects will cause some problems. For example, the creation of many types of objects requires a series of steps: you may need to calculate or obtain the object's initial settings; choose which sub-object instance to generate; or you must generate some helper objects before generating the object you need. In these cases, the creation of a new object is a "process", not just an operation, like a gear transmission in a larger machine.

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