On Mon, Sep 22, 2008 at 11:59 AM, Nathan Rixham <nrixham@xxxxxxxxx> wrote:
> Nathan Nobbe wrote:
>>
>> On Mon, Sep 22, 2008 at 2:54 AM, Shelley <myphplist@xxxxxxxxx> wrote:
>>
>>> Hi all,
>>>
>>> Is there any way to auto load a class without using __autoload()
>>> function?
>>>
>>> As I want to load some classes under different paths, and that caused
>>> redeclare of __autoload function.
>>
>>
>> a lot of people / frameworks, etc. define their own class loading
>> mechanism
>> in userspace. heres a simple example,
>>
>> function _autoload($class) {
>> include(STD_CLASS_PATH . "/$class.php");
>> if(!class_exists($class)) {
>> trigger_error("unable to load class $class.", E_USER_NOTICE);
>> return false;
>> } else
>> return true;
>> }
>>
>> -nathan
>>
>
> that's what I do too.. personally I use _ (underscores) in PHP like .
> (periods) in Java to map objects to folders/files..
>
> function __autoload($class) {
> if(file_exists( SOME_BASE_DIR . parse_class_name($class) )) {
> include_once SOME_BASE_DIR . parse_class_name($class);
> } else {
> #your error here
> }
> }
>
> function parse_class_name( $classname ) {
> return strtolower( str_replace('_', DIRECTORY_SEPARATOR, $classname) .
> '.php' );
> }
>
> so:
> <?php
> $http_handler = new http_handler;
> ?>
> would autoload
> SOME_BASE_DIR/http/handler.php
>
> whilst
> <?php
> $atom_parser = new atom_parser;
> ?>
> would autoload
> SOME_BASE_DIR/atom/parser.php
>
>
> keeps my files all nice and organised and saves me writing map's :)
>
> Nathan
>
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>
>
And one of mine...
spl_autoload_register(array('byte','autoload'));
/**
* autoload!
*
* @param string $name
* @return bool
*/
public static function autoload($name) {
if (class_exists($name, false) === true) {
return true;
}
return (bool)include(str_replace('_', DIRECTORY_SEPARATOR,
$name) .'.php');
}
And I have others based on whatever project I'm working on. I
maintain 3 specific shared code apps so they each have their own auto
loader which will try to basically do this except it prefixes the
include with the current path. Good thing for spl. :)
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