This script is connected to paypal payment gateway & every user must pay after the test completing a fee chosen iq by you in a chosen currency (can be set easily). All text phrases are stored in one text file & thus it is possible to translate the script into any paypal language by means of a text editor. After payment the user is redirected directly to quiz his/her result & all wrong answers are displayed to him/her. It requires ca 20 mb of space & is completely maintenance free. Multilingual optional paypal gateway easy installation maintenance free php script all my works test