phpexcel的自动加载与其他框架有冲突

public static function Register() {   /* if (function_exists('__autoload')) {        //    Register any existing autoloader function with SPL, so we don't get any clashes        spl_autoload_register('__autoload');    }    //    Register ourselves with SPL    return spl_autoload_register(array('PHPExcel_Autoloader', 'Load'));    }

public static function Register() {   /* if (function_exists('__autoload')) {        //    Register any existing autoloader function with SPL, so we don't get any clashes        spl_autoload_register('__autoload');    }    //    Register ourselves with SPL    return spl_autoload_register(array('PHPExcel_Autoloader', 'Load'));*/    $functions = spl_autoload_functions();    foreach ( $functions as  $function)        spl_autoload_unregister($function);    $functions = array_merge(array(array('PHPExcel_Autoloader','Load')),$functions);    foreach ( $functions as $function)        $x = spl_autoload_register($function);    return $x;}