Standard Autoloader for PEAR2 PEAR2_Autoload is the standard method of class loading for development and low-volume web sites using PEAR2 packages. To use: <?php require '/path/to/PEAR2/Autoload.php'; // Now use class names from installed PEAR2 packages at will // You can also inclue other PEAR2 registries // require '/other/pear2/repo/PEAR2/Autoload.php'; // or manually // PEAR2\Autoload::initialize('/other/pear2/repo'); ?>