17php template mode

directly on the code.

 
 Price + = $this->tax ();        $this->price-= $this->sale ();    }        Taxation    protected Function tax () {        return 0;    }        Rent    protected abstract function sale ();} Class Book extends sale{public    $name;    public $author;        function __construct ($name, $author, $price) {        $this->name = $name;        $this->author = $author;        $this->price = $price;    }        function Sale () {        return $this->price*0.1;    }} $book = new book (' Night Flight Westward ', ' Markhamberell ', ' + '), $book->setprice (); Echo $book->price;

The above describes the 17php template mode, including the aspects of the content, I hope that the PHP tutorial interested in a friend helpful.

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