Why doesn't this abstract class output anything in Php?
Why does this abstract class not work and output nothing?
<?php
abstract class Con {
function __construct($name);
}
}
class Shop extends Con {
function __construct($name) {
$this->shopname = $name;
}
function write() {
echo $this->shopname;
}
function outputdate() {
echo ' ' . date('Y');
}
开发者_如何学编程 function __destruct() {
$this->outputdate();
}
}
You cannot define some class in other class body. Instead, you must use PHP OOP features to extend one class from another.
class Shop extends Con{
...code goes here....
}
$shop = new Shop('shopname');
$shop->write();
You can't instantiate an abstract class. Also, you can't create a class within another class.
http://php.net/manual/en/language.oop5.abstract.php
http://en.wikipedia.org/wiki/Abstract_type
Check out this link if you are looking to subclass.
http://php.net/manual/en/keyword.extends.php
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