Quirex PHP

This script allows the quiz-taker to select the number of questions he wants to attemp. The script will take the number of questions randomly from the database and display them in random order. After the answers are submitted, a page of results will be displayed showing the quiz-taker's answer and the correct answer of each question. It also counts the number of questions he has got correct. In addition, the script can also keep a record of challengers, recording their names, emails, number of questions attemped and their scores, and display the results of the most recent challengers.