highlow.php

<?php

// cpu picks a random number
// prompt to pick a number
// user sees higher/lower according to guess
// correct guess leads to game over

if ($argc == 3) {
    $low = $argv[1];
    $high = $argv[2];
    $answer = mt_rand($low, $high);
} else {
    $answer = mt_rand(1, 100);
}

$guesses = 1;

fwrite(STDOUT, "Let's play a game. Guess what number I am thinking of.\n");

$user_guess = trim(fgets(STDIN));

while ($user_guess != $answer) {
    // prompt user for another answer
    // capture stdin
    $guesses++; //tracks guesses for use later

    if ($user_guess > $answer) {
        echo "Lower.";
    } elseif ($user_guess < $answer) {
        echo "Higher.";
    }

    $user_guess = trim(fgets(STDIN));

    // fwrite(STDOUT, "Guess again.\n");

} // end while statement

echo "Good guess!\n";
echo "It took you $guesses tries to figure me out.";

?>