Classic case: Object-oriented Graphing calculator

Source: Internet
Author: User
Classic example: Object-oriented Graphing calculator
In the index.php file, there are
echo New Form ("index.php"); A form is a class that has a construction method inside it.

echo New Result ();
What does this mean, new is not creating an object? So the output object can also ah. What's the name of the object you created?
The form class is constructed in the following way:
function __construct () {
$this->action= $action;
$this->shape=isset ($_get["action"])? $_get["Action"]: "rect";

echo New Form ("index.php"); An instantiated object of the output form, which is an object. Use the Echo output will be error, to use Print_r (); Printing is only a line.
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