Re: How can I do this -- method chaining
| From: | Nathan Nobbe | Date: | Tue, 29 Jan 2008 19:38:22 +0000 |
| Subject: | Re: How can I do this -- method chaining | ||
| References: | 1 2 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-268273@lists.php.net to get a copy of this message | ||
On Jan 29, 2008 2:27 PM, Andrew Ballard <aballard@gmail.com> wrote:
> On Jan 29, 2008 1:53 PM, Christoph Boget <christoph.boget@gmail.com>
> wrote:
> > Constructors return the object, correct?
>
> Actually, I don't think so. I believe constructors return void, while
> the 'new' keyword returns a copy of the object.
im pretty sure constructors return an object instance:
php > class Test { function __construct() {} }
php > var_dump(new Test());
object(Test)#1 (0) {
}
but anyway, how could you even test that __construct() returned void
and the new keyword returned a copy of the object? new essentially
invokes __construct() and passes along its return value, near as i can tell.
Christoph,
if you dont want to write a function in the global namespace, as suggested
in the article, Eric posted, just add a simple factory method in your class,
eg.
<?php
class Test {
public static function getInstance() {
return new Test();
}
public function doSomething() {
echo __METHOD__ . PHP_EOL;
}
}
Test::getInstance()->doSomething();
?>
-nathan