Re: __init magic method
| From: | Johannes Schlüter | Date: | Tue, 22 Jan 2013 13:03:47 +0000 |
| Subject: | Re: __init magic method | ||
| References: | 1 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-65083@lists.php.net to get a copy of this message | ||
Hi,
On Tue, 2013-01-22 at 12:29 +0000, Pete Boere wrote:
> Has there ever been any discussion on an __init magic method for
> bootstraping static properties on class load?
Adding an __init method as you wish will just add complexity and gain
very little. What complexity am I talking about? Well look at this
single file:
<?php
class A {
public function __init() { echo __CLASS__; }
}
class B extends D {
public function __init() { echo __CLASS__; }
}
class C {
public function __init() { echo __CLASS__; }
}
class D {
public function __init() { echo __CLASS__; }
}
class E {
public function __init() { echo __CLASS__; }
}
?>
What should this print? ABCDE? Then the derived class B is initialized
before the base class D, which might have strange effects and make
debugging hard. So maybe it is ACDEB? This makes the resolution quite
complicated.
On the other hand: You are showing a goos solution, which is clear and
works well. PHP has the global scope, we don't force everything into
classes and then create Java-style static{}-madness.
johannes