codice:

<?php //4 //5
/**
 * Functions "FROM path IMPORT data"
 * 	A list of functions to import from a folder one or more files.
 *      Emulates python sintax with something like:
 *      	from('classes') . import('*');
 * How to:
 * 	from( $files_folder ) . import( $array_string_or_all );
 *      @param		String		path where you want import* files
 *      					*import as require_once
 *      @param		Mixed		single char '*' to import all files
 *      				class or file name 'Example' without extensions
 *                                      array with a list of files without extensions
 * -------------------------------
 * EXAMPLE:
 * 		require_once('from_import.php');
 *              from('classes') . import(Array('MyDBClass', 'MyOtherClass'));
 * _______________________________
 * @author	Andrea Giammarchi
 * @date	2005/06/01 11:00
 * @site	www.devpro.it
 * _______________________________
 */

function from($folder){
	$temp_folder = $folder;
	do
	{
		$last = substr($temp_folder, -1);
		$temp_folder = substr($temp_folder, 0, -1);
		$pos = isSet($pos) ? $pos++ : 0;
	}
	while(in_array($last, Array('\\\', '/')));
	$folder = $pos === 0 ? $folder : substr($folder, 0, $pos);
	$GLOBALS['__FROM_IMPORT_FOLDER__'] = &$folder;
}

function import($what) {
	if(
		isset( $GLOBALS['__FROM_IMPORT_FOLDER__'] ) &&
		is_dir( $GLOBALS['__FROM_IMPORT_FOLDER__'] )
	)
		if(@$handle = &opendir( $GLOBALS['__FROM_IMPORT_FOLDER__'] ))
		{
			while(($file = readdir($handle)) !== false)
				__fileImporter($file, $what);
			closedir($handle);
			unset( $GLOBALS['__FROM_IMPORT_FOLDER__'] );
		}
}

function __fileImporter(&$file, &$what) {
	if(
		$file !== '.' &&
		$file !== '..' &&
		isset( $GLOBALS['__FROM_IMPORT_FOLDER__'] ) && 
		!is_dir( $GLOBALS['__FROM_IMPORT_FOLDER__'] .'/'. $file ) &&
		is_file( $GLOBALS['__FROM_IMPORT_FOLDER__'] .'/'. $file )
	)
	{
		$requred = false;
		if($what === '*')
			$requred = true;
		else
		{
			$temp_file = array_shift(explode('.', $file));
			if(!class_exists($temp_file))
			{
				if(!is_array($what) && $temp_file === $what){
					$requred = true;
				}
				elseif(is_array($what) && in_array($temp_file, $what))
					$requred = true;
			}
		}
		if($requred === true)
			@require_once( $GLOBALS['__FROM_IMPORT_FOLDER__'] .'/'. $file );
	}
}
?>