Re: [PHP] new $foo->className(); Class name must be a valid object or a string

On 4 May 2008, at 00:46, Jack Bates wrote:
> I am trying to load PHP objects stored in a database, where the class
> name is stored in a column:
>
> $object = new $resultSet->getString(1);
>
> This fails for the same reason that the following fails:
>
> <?php
>
> class Foo
> {
>  public function className()
>  {
>    return 'Foo';
>  }
> }
>
> $foo = new Foo;
> $bar = new $foo->className();

I would rather have a factory method that returns a new instance of  
the class. There's no need for the outside world to know the class name.

<?php
   class Foo
   {
     public function newInstance()
     {
       return new self();
     }

     public function test($a)
     {
       echo 'test: '.$a."\n";
     }
   }

   $foo = new Foo;
   $foo->test('foo');
   $bar = $foo->newInstance();
   $bar->test('bar');
?>

However, if you insist on doing it your way can I make a small  
suggestion? It's better to spend your time on functionality rather  
than finding ways to save some typing. I see no reason to try to  
combine the two statements - saving typing and a pitiful amount of  
disk space are the only benefits.

-Stut

-- 
http://stut.net/