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<?php spl_autoload_register('drupal_autoload_class'); function drupal_autoload_class($class) { print __FUNCTION__ . "('$class')\n"; return _registry_check_code('class', $class); } function _registry_check_code($type, $name = NULL) { static $lookup_cache, $cache_update_needed; if ($type == 'class' && class_exists($name) || $type == 'interface' && interface_exists($name)) { return TRUE; } return FALSE; } print class_exists('C') ? 'YES' : 'NO';

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