Breaking custom spl_autoload_register
Breaking custom spl_autoload_register

`bool class_exists ( string $class_name [, bool $autoload = true ] )`. If using composer with custom spl_autoload_register it will be broken
intuit/QuickBooks-V3-PHP-SDK,intuit/QuickBooks-V3-PHP-SDK,intuit/QuickBooks-V3-PHP-SDK