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Hangman Source Code: PHP

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Hey everybody,

Lately I have written the game Hangman in many different languages (C, JavaScript, Java and PHP so far). Here is the code snippet for PHP! It uses a words file, on the bottom of this post you will see a small example of a few words. The source code for other languages can be found here on DaniWeb and on my new website: .

You can adjust the words file in the getWord() function (line 21). The words need to be separated by a |. Words files can be found can be found here. By default, the images made by Symbol Webdesign will be used. If you want to change the imagesource, adjust the HTML part.

~G

legendary|variation|equal|approximately|segment|priority|physics|branche|science|mathematics|lightning|dispersion|accelerator|detector|terminology|design|operation|foundation|application
<?php
session_start();

// The following function returns a word of dots, each dot represents a letter

function word2dots($word) {
$wordlength = strlen($word);
$dotWord = "";
for ($i = 0; $i < $wordlength; $i++) {
$dotWord = "".$dotWord.".";
}
return $dotWord;
}

// The following function opens the file, reads it, saves it into an array and returns a random word

function getWord() {

// Opening and reading file

$filename = "words.txt"; // You can change this into whatever words file you'd like, as long as it's local.

@$filehandle = fopen($filename,"r");
@$filecontent = fread($filehandle,filesize($filename));
@fclose($filehandle);

if (!$filehandle) {
$_SESSION['message'] = "Could not open ".$filename;
}

// Splitting the content into the $words array

$words = split("\|", $filecontent);
$words_amount = count($words);

// Calculating random number

$random_number = mt_rand(0,$words_amount);

// Returning random word
$theWord2 = $words[$random_number];

return $theWord2;
}

// Resetting the message

$_SESSION['message'] = "";

// Retrieving the guessWord, theWord and the amount of errors.

if (isset($_POST['send_letter']) && $_SESSION['gameEnded'] != true) {
if (isset($_POST['HangManLetter']) && preg_match("/[A-Z\s_]/i", $_POST['HangManLetter']) > 0) {

// Getting the $letter value

$letter = htmlentities(stripslashes($_POST['HangManLetter']));

// Retrieving session variables

$theWord = $_SESSION['theWord'];
$guessWord = $_SESSION['guessWord'];
$error_amount = $_SESSION['error_amount'];

// Checking wether the $letter occurs in the word

// Filling the arrays:

for ($d = 0; $d < strlen($theWord); $d++) {
$theWordArray[$d] = substr($theWord, $d, 1);
$guessWordArray[$d] = substr($guessWord, $d, 1);
}

// Checking occurance of the letter in theWord

$letterOccured = false;
for ($f = 0; $f < strlen($theWord); $f++) {
if ($theWordArray[$f] == $letter) {
$letterOccured = true;
$guessWordArray[$f] = $theWordArray[$f];
}
}

// Updating the guessWord:

$guessWord = "";
for ($r = 0; $r < strlen($theWord); $r++) {
$guessWord = "".$guessWord."".$guessWordArray[$r]."";
}

$_SESSION['guessWord'] = $guessWord;

if ($_SESSION['guessWord'] == $_SESSION['theWord']) {
$_SESSION['message'] = "You won! <input type='submit' name='reset' value='Try again?' />";
unset($_SESSION['theWord']);
unset($_SESSION['guessWord']);
$_SESSION['gameEnded'] = true;
$_SESSION['guessWord'] = $theWord;
}

if ($letterOccured == false) {
$error_amount++;
$_SESSION['error_amount'] = $error_amount;

// If the error_amount is higher as 9, the player lost

if ($error_amount > 9) {
$_SESSION['message'] = "You lost! <input type='submit' name='reset' value='Try again?' />";
unset($_SESSION['theWord']);
unset($_SESSION['guessWord']);
$_SESSION['gameEnded'] = true;
$_SESSION['guessWord'] = $theWord;
}
}

} else {

// Showing the message

if (preg_match("/[A-Z\s_]/i", $_POST['letter']) < 0) {

$_SESSION['message'] = "Only alphanumeric symbols are allowed!";

} else {

$_SESSION['message'] = "Enter a letter!";

} // End of else isaplha ($_POST['HangManLetter'])
} // End of else isset($_POST['HangManLetter']) and preg_match("/[A-Z\s_]/i", $_POST['HangManLetter'])

} else { // If the game has been resetted or there has not yet been a game played

$theWord = getWord();
$guessWord = word2dots($theWord);
$error_amount = 0;
$_SESSION['theWord'] = $theWord;
$_SESSION['guessWord'] = $guessWord;
$_SESSION['error_amount'] = $error_amount;
$_SESSION['gameEnded'] = false;
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<link rel="stylesheet" href="style1.css" type="text/css" />
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Hangman</title>
</head>
<body onload="document.getElementById('HangManInput').focus()">
<div style="background-color:#EFEFEF;position:relative; top:0px; left:0px; border:2px ridge #BBBBBB; width:200px; height:280px; font-family:Times New Roman; font-weight:normal; font-style:normal; text-decoration:none;">
 <form action="" method="post" onsubmit="return true;">
  <div id="HangManTitle" style="font-size:22px; position:absolute; top:5px; width:200px; text-align:center;">
   Hangman
  </div>
  <div id="HangManConsole" style="font-size:16px; position:absolute; top:34px; text-align:center; width:200px;">
   Enter a letter: <input type="text" maxlength="1" size="1" id="HangManInput" name="HangManLetter" /><input type="hidden" value="true" name="send_letter" /><input type="submit" value="Go" name="send_letter_button" /><br />
   The word: <span id="HangManGuessWord"><?php echo $_SESSION['guessWord']; ?></span><br />
  </div>
  <div id="HangManImage" style="position:absolute; top:85px; left:22px;">
   <img src="http://www.hangman.symbolwebdesign.nl/hmimgs/hm<?php echo $_SESSION['error_amount']; ?>.bmp" id="HangManIMG" style="border:1px ridge #BBBBBB;" />
  </div>
  <div id="HangManMessage" style="font-size:16px; position:absolute; top:250px; width:200px; text-align:center;">
   <?php echo $_SESSION['message']; ?>
  </div>
 </form>
</div>
</body>
</html>
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Arianna
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31 posts since Oct 2009
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Whoa, this is awesome! Thanks!

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bigbilly
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1 post since Mar 2011
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echo "Useless rubbish";

Useless rubbish, bunch of lines

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Nick Evan
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4,827 posts since Oct 2006
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@bigbilly:

Did you actually create an account just to tell everyone that you find this snippet useless? Wow.. :icon_eek:

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