php - automatically create an instance of myClass

I have a class called myClass in /myDir/myClass.php. When user types url:

http://mysite.com/myDir/myClass.php,  

I want to automatically create an instance of myClass. What techniq开发者_开发问答ue can I use to do this? the idea is to use myDir directory as top level of programs that user can call directly, but I don't want to add instance_of_myClass = new myClass(); because then I won't be able to extend the class. Does this make sense?

class myClass
{    
  __construct()
  {
     echo "hello World";
     $this->myClass_report();
  }
  myClass_report()
  {
      // some code here
  }


}   

---

.htaccess:

#if You have access, omit RewriteBase and put the rule in http.conf,
#with a / in the beginning of the pattern.
RewriteBase /
RewriteCond $0 !=index.php
RewriteRule .* index.php?path=$0 [QSA,B]

index.php

//check if the file exists and it's allowed
if (!check_if_allowed_path(realpath($_GET['path']))) {
    //access denied; check e.g. against the document root or
    //something more complex
}
//or use autoload instead
include $_GET['path'];
$classname = basename($_GET['path'], '.php');
$instance = new $classname();

---

class myClass
{    
  __construct()
  {
     echo "hello World";
     myClass_report();
  }
  myClass_report()
  {
      // some code here
  }


} 

$x = new myClass();

---

I don't understand what you're trying to do, but maybe this will help:

If you want to create an instance of myClass, but don't want the new myClass to be hard-coded everywhere, you could use a factory (wikipedia) of some kind.

---

If you are not creating an instance with

$classINstance = new myClass();

Then you don't have a class instance. That has nothing to do with extending a class.

You extend a class (i assume you mean inheritance?), then you create a new class that extends a parent class. To use this class you also create a new instance with the new operator.

At least if you are not using the static keyword to create static methods for a class.

I had a quick search, maybe have a look at this questions accepted answer. Lookd like a good summary that could help you:

OOP

Or i just didn't understand what you meant ;)

---

Use the factory design pattern:

<?php
//Factory.php
include_once('Box.php');

class My_Factory
{
  private $this->outcome;

  public function __construct()
  {
    this->outcome = $this->doSomeWeirdShitToSetupTheFactoryAndBlueprintSomething();
  }

  private function doSomeWeirdShitToSetupTheFactoryAndBlueprintSomething()
  {
    //1+1
  }

  public function giveMeAnInstanceOfOutcome()
  {
    return new My_Box($this->outcome);
  }
}

Edit: I read it again and I have one question: Why do you want a user to type http://yourl/YourClass.php ???

Classes should be included; never ever ever used to load directly to the browser.