Congratulation page not showing the variable from the number-guessing game

[abbas]

I have a php script for a number-guessing game and an html script for a congratulation page. If the guess is correct, the game will end and the congratulation page will open. In the php, I have a variable $prize=1000-100 * $_POST['tries'], such that if the first guess is right, the player will win $1000; if the player has a second guess, the prize will be $100 less, and so on. This variable is saved in a hidden field in the php as $_POST['prize']. I hope the final prize can be printed in the congratulation page, but it didn