PHP猜数(PHP Guessing Number)

PHP猜数(PHP Guessing Number)

这是1到100之间的随机数猜谜游戏。

我被困在猜测数字部分。 代码不起作用，无论我说它的数量只是向我显示消息“你的号码更低！”。我需要帮助。

这就是我到目前为止所拥有的。

<?php $x = rand(1, 100); $num = ''; if (isset($_POST['submit'])) { if ($num < $x) { echo " Your number is lower! <br />"; } elseif ($num > $x) { echo " Your number is higher! <br />"; } elseif ($num == $x) { echo " Congratulations! You guessed the hidden number. <br />"; } else { echo " You never set a number! <br />"; } } ?> <p> <form action="" method="post"> <input type="text" name="num"> <button type="submit" name="submit">Guess</button> <button type="reset" name="Reset">Reset</button> </form> </p>

This is a random number guessing game between 1 and 100.

I am stuck on the guessing number part. The code doesn't work, whatever number I put it just show me the message "Your number is lower!".I need help.

This is what I have so far.

<?php $x = rand(1, 100); $num = ''; if (isset($_POST['submit'])) { if ($num < $x) { echo " Your number is lower! <br />"; } elseif ($num > $x) { echo " Your number is higher! <br />"; } elseif ($num == $x) { echo " Congratulations! You guessed the hidden number. <br />"; } else { echo " You never set a number! <br />"; } } ?> <p> <form action="" method="post"> <input type="text" name="num"> <button type="submit" name="submit">Guess</button> <button type="reset" name="Reset">Reset</button> </form> </p>

最满意答案

你将永远变得更低，因为$num内没有任何value 。所以，你需要分配$num

<?php $x = rand(1, 100); $num = ''; if (isset($_POST['submit'])) { $num = $_POST['num']; // Add this to set value for $num variable if ($num < $x) { echo " Your number is lower! <br />"; } elseif ($num > $x) { echo " Your number is higher! <br />"; } elseif ($num == $x) { echo " Congratulations! You guessed the hidden number. <br />"; } else { echo " You never set a number! <br />"; } } ?>

You will always get lower because There isn't any value inside you $num.So, You need to assigning $num

<?php $x = rand(1, 100); $num = ''; if (isset($_POST['submit'])) { $num = $_POST['num']; // Add this to set value for $num variable if ($num < $x) { echo " Your number is lower! <br />"; } elseif ($num > $x) { echo " Your number is higher! <br />"; } elseif ($num == $x) { echo " Congratulations! You guessed the hidden number. <br />"; } else { echo " You never set a number! <br />"; } } ?>