Re: working with class inheritance

Thanks everyone, Gave me a much better understanding of it "Jim Lucas" <lists@cmsws.com> wrote in message news:45FFA7F9.3090105@cmsws.com... > Jim Lucas wrote: > > Jeff Taylor wrote: > >> Hey all, got a slight problem, where for some reasons my variables > >> dont seem > >> to be getting stored in the child class: > >> > >> e.g > >> > >> class Parent > > At least in PHP 5.2.1 on windows xp (for testing only), the class name > > Parent is a reserved class name, you cannot define a class by that name. > > > >> { > >> $private type; > >> > >> public function __construct() > >> { > >> } > >> > >> public function GetType() > >> { > >> return $this->type; > >> } > >> } > >> > >> class Child implements Parent > >> { > >> $public function __construct() > > public should not be prefixed with '$' > > you are missing your open '{' for this method > >> > > > > You need to call > > parent::__construct(); > > > >> > >> $this->type= 'Child'; > >> } > >> } > >> > >> $Child= new Child(); > >> echo $Child->getType; > > also, you are calling a method, not accessing a property. > > > > it should be > > echo $Child->getType(); > > > >> > >> Can u see any reason why the type would return null? > >> > >> Thanks, > >> > >> Jeff > >> > >> > > well, for starters, I think it is incorrect to have public and private > > prefixed with a '$'. But then you have it on some, but not all of > > them..... > > > > Besides that, does it give you an error? What does it return if it > > doesn't return 'Child'?? > > > > What version of PHP are you running on. there is a differnet way the > > constuct() method gets called. > > > > public and private are not available in versions older than php 5 > > > > in PHP version < 5 you have to have a method named the same as the class > > that you are creating. > > > > Try this: > > <?php > > > > class myParent { > > # private $type; #<--- With this, I cannot echo $type > > > > var $type; #<--- With this, I CAN echo $type > > > > public function __construct() { > > } > > > > public function myParent() { > > $this->__construct(); > > } > > public function getType() { > > echo $this->type; > > } > > } > > > > class myChild extends myParent { > > public function __construct() { > > parent::__construct(); > > $this->type = 'Child'; > > } > > public function myChild() { > > $this->__construct(); > > } > > } > > > > $Child = new myChild(); > > echo $Child->getType(); > > > > ?> > > > > ok, responded too quickly. Roman has it right with the settype method > > This now works. > > <?php > > class myParent { > private $type; > public function __construct() { > return $this; > } > public function myParent() { > return $this->__construct(); > } > public function setType($value='') { > $this->type = $value; > } > public function getType() { > return $this->type; > } > } > > class myChild extends myParent { > public function __construct() { > parent::__construct(); > $this->setType('Child'); > return $this; > } > public function myChild() { > return $this->__construct(); > } > } > > $Child = new myChild(); > echo $Child->getType(); > > ?>