Re: include_once/__autoload/namespace emulation ...

Sean wrote: 
Namespaces and PHP are certainly an issue, some of the things you wrote
I have never heard of before, like require_once being bugged.

Pear is a good example of how namespaces should be done but I would
suggest an even simpler solution.

Say you have a folder structure like:

classes

XML 
Parser.inc.php
Transformer.inc.php

DB
Mysql.inc.php

FILE_SYSTEM
File.inc.php 

They you should have an auto load function like:

function __autoload( $class )
{
    $load = strtolower( str_replace( "_", "/classes/", $class ) ) .
".inc.php";
    if( file_exists( $load ) )
    {
        include_once( $load );
    }
    else
    {
        die( "Can't find a file for class: $class  \n" );
    }
}

Now you can have

$obj = new XML_Parser();

(example adapter from http://www.wiki.cc/php/Overload_autoload).

This makes things allot easier. The drawback is it is not php4
compatible.


I thought of that, but doesn't it try to load "XML_Parser" from within the class file, instead of just "Parser"? In some cases that would lead to to huge class names (and a lot of typing).

Also, I've read that there is a performance problem with __autoload - has that been taken care of? (I read that php 5.1 improved some of the performance issues with magic functions.)

I really wish the php guys would just implement at least class level namespaces (they already have a patch).

Kevin N.
.

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