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random number help

CageyJ0nnY

By CageyJ0nnY
in PHP Coding Help

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CageyJ0nnY Member

CageyJ0nnY

Posted
Posted

Hi, I am new to coding in PHP and i am in the process of creating a page that lets a user choose from rock, paper or scissors. The form page links to another page which chooses a random number from 1-3. 1=rock, 2=paper and 3=scissors. A series of IF statements are used to see who has won; the user or the PC.  I cant get this script to work and I cant see why. any comments will be gratefully  received.

 

The code for the form page:

 

<html>

<head>

<title>Rock, Paper, Scissors</title>

</head>

<body>

<h3>Rock Paper Scissors</h3>

 

<p>Choose iether rock paper or scissors<P>

<form action="result.php" method="post">

  Rock <input type="checkbox" name ="rock " value="rock"/><br/>

  Paper <input type="checkbox" name ="paper" value="paper"/><br/>

  Scissors <input type="checkbox" name ="scissors" value="scissors"/><br/>

  <input type= "submit" value = "submit" /><br/>

 

</form>

</body>

</html>

 

 

The second page:

 

<?php

$computer=rand(1,3);

//1=rock, 2=paper, 3=scissors

 

if ($human==rock){

if ($computer==1){

  echo"Draw";

}

elseif ($computer==2){

  echo"Paper beats Rock - You Lose";

}

else {

  echo"Rock beats scissors - You Win!";

}

if ($human==paper){

if ($computer==1){

  echo"Paper beats Rock - You Win!";

}

elseif ($computer==2){

  echo"draw";

}

else {

  echo"Scissors beats Paper = You Lose";

}

if ($human==scissors){

if ($computer==1){

  echo"rock beats scissors - You Lose";

}

elseif ($computer==2){

  echo"Scissors beats Paper - You Win!";

}

else {

  echo"draw";

}

?>

 

MANY THANKS

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Buddski Newbie

Buddski

Posted
Posted

This is my rendition of Rock Paper Scissors..

Ive added comments to help you along.. If you have any questions about what any part of the code does.. just ask :)

This all goes on the 1 page..

 

<?php 

$message = '';

// Define the standard values //
$values = array(1=>'Rock',2=>'Paper',3=>'Scissors');
// Make sure the form was posted //
if (isset($_POST['hand'])) {
// Get the values for the computer and the player //
$player[0] = array('name'=>'Computer','hand'=>rand(1,3));
$player[1] = array('name'=>'Player','hand'=>$_POST['hand']);
// Bring output of message // 
$message = '<b>'.$player[0]['name'].'</b> chose '.$values[$player[0]['hand']].'<br/>';
$message .= '<b>'.$player[1]['name'].'</b> chose '.$values[$player[1]['hand']].'<hr/>';
// Check if both hands are the same //
if ($player[1]['hand'] == $player[0]['hand']) {
	$message = "Both players selected ".$values[$player[0]['hand']]." which resulted in a Draw!";
// Now we check to see if either player had a rock and the other had paper.
} elseif (($player[1]['hand'] == 1 && $player[0]['hand'] == 3) || ($player[1]['hand'] == 3 && $player[0]['hand'] == 1)) {
	// Show the correct winner by checking who had the rock and who didnt.. I used the ternary operator cause its cleaner //
	$message .= ($player[1]['hand'] == 1 ? $player[1]['name'].' wins with '.$values[$player[1]['hand']] : $player[0]['name'].' wins with '.$values[$player[0]['hand']]);
} elseif (($player[1]['hand'] == 2 && $player[0]['hand'] == 3) || ($player[1]['hand'] == 3 && $player[0]['hand'] == 2)) {
	$message .= ($player[1]['hand'] == 3 ? $player[1]['name'].' wins with '.$values[$player[1]['hand']] : $player[0]['name'].' wins with '.$values[$player[0]['hand']]);
} elseif (($player[1]['hand'] == 2 && $player[0]['hand'] == 1) || ($player[1]['hand'] == 1 && $player[0]['hand'] == 2)) {
	$message .= ($player[1]['hand'] == 2 ? $player[1]['name'].' wins with '.$values[$player[1]['hand']] : $player[0]['name'].' wins with '.$values[$player[0]['hand']]);
}
} else {
$message = 'Please select your move';
}

?>

<html>
<head>
<title>Rock, Paper, Scissors</title>
</head>
<body>
<h3>Rock Paper Scissors</h3>
<p>Choose either rock paper or scissors<P>
<form action="<?php echo $_SERVER['REQUEST_URI']; ?>" method="post">
  Rock <input type="radio" name="hand" value="1"/><br/>
  Paper <input type="radio" name="hand" value="2"/><br/>
  Scissors <input type="radio" name="hand" value="3"/><br/>
   <input type= "submit" value="Play!" name="submit"  /><br/><br/>
   <div style="background-color:#f6f6f6;padding:5px;width:350px;border:1px solid black;"><?php echo $message; ?></div>
</form>
</body>
</html>

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B0b Member

B0b

Posted
Posted

That may be just more clear for an initiate  8)

 

<?php

$computer = rand( 1, 3 );

switch ( $human ) {
case 'rock':
	$human = 1;
	break;
case 'paper':
	$human = 2;
	break;
default:
	$human = 3;
}

if ( $computer == $human ) {
echo 'Draw';
} else {
if ( $human == 1 ) {
	if ( $computer == 2 ) {
		echo 'Paper beats Rock - You Lose';
	} else {
		echo 'Rock beats Scissors - You Win';
	}
} elseif ( $human == 2 ) {
	if ( $computer == 1 ) {
		echo 'Paper beats Rock - You Win';
	} else {
		echo 'Scissors beats Paper - You Lose';
	}
} else {
	if ( $computer == 1 ) {
		echo 'Rock beats Scissors - You Lose';
	} else {
		echo 'Scissors beats Paper - You Win';
	}
}
}

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