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Modulus 11 Generator

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Fri. Jul. 20th, 2007 7:22 PM

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ColdKeyboard

11 | Generator | Modulus | Number

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This module is used to generate the unique number and self check the numbers in social security, band accounts and etc.

Here you can find detailed explanation:
http://www.eclectica.ca/howto/modulus-11-self-check.php?start=1&count=5&generate=Generate#calculator

I have made this scirpt generate numbers in drop down list and write brojevi.txt file that you can download with numbers you have generated...

<?php

$broj = $_POST['pocetni'];

$ponavljanja = $_POST['ponavljanja'];

$get = $_GET['get'];

if (!empty($get)) {

        // force to download a file

        $file = "brojevi.txt";

        header("Pragma: public");

        header("Expires: 0");

        header("Cache-Control: must-revalidate, post-check=0, pre-check=0");

        header("Content-Type: application/force-download");

        header( "Content-Disposition: attachment; filename=".basename($file));

        header( "Content-Description: File Transfer");

        @readfile($file); 

        die();

}

?><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8">

<title>Fakin Generator</title>

<style type="text/css">

<!--

body,td,th {

        color: #FFFFFF;

        font-family: Verdana, Arial, Helvetica, sans-serif;

        font-size: 12px;

}

body {

        background-color: #002448;

}

.input {

        font-family: Verdana, Arial, Helvetica, sans-serif;

        font-size: 10px;

        background-color: #003399;

        border: 1px solid #3366CC;

        color: #FFFFFF;

}

a:link {

        color: #0099FF;

        text-decoration: none;

}

a:visited {

        text-decoration: none;

        color: #0099FF;

}

a:hover {

        text-decoration: none;

        color: #0066CC;

}

a:active {

        text-decoration: none;

        color: #0099FF;

}

-->

</style>

</head>

<body>

<form name="form1" method="post" action="">

  <table width="145" border="0">

    <tr>

      <td width="66">Pocetni</td>

      <td width="254"><input name="pocetni" type="text" class="input" id="pocetni" value="<?php echo $broj; ?>" size="5"></td>

    </tr>

    <tr>

      <td>Brojeva</td>

      <td><input name="ponavljanja" type="text" class="input" id="ponavljanja" value="<?php echo $ponavljanja; ?>" size="5"></td>

    </tr>

    <tr>

      <td colspan="2" align="center"><input name="button" type="submit" class="input" id="button" value="Generisi"></td>

    </tr>

  </table>

  <br>

  <br>

</form>

<br>

<label></label>

<br>

<?php

/* Append modulus 11 check digit to supplied string of digits. */

function GenMOD11( $base_val )

{

   $result = "";

   $weight = array( 2, 3, 4, 5, 6, 7,

                    2, 3, 4, 5, 6, 7,

                    2, 3, 4, 5, 6, 7,

                    2, 3, 4, 5, 6, 7 );

   /* For convenience, reverse the string and work left to right. */

   $reversed_base_val = strrev( $base_val );

   for ( $i = 0, $sum = 0; $i < strlen( $reversed_base_val ); $i++ )

   {

      /* Calculate product and accumulate. */

      $sum += substr( $reversed_base_val, $i, 1 ) * $weight[ $i ];

   }

   /* Determine check digit, and concatenate to base value. */

   $remainder = $sum % 11;

   switch ( $remainder )

   {

   case 0:

      $result = $base_val . 0;

      break;

   case 1:

      $result = "n/a";

      break;

   default:

      $check_digit = 11 - $remainder;

      $result = $base_val . $check_digit;

      break;

   }

   return $result;

}

function napravi10 ($cifra) {

        if ($cifra != "n/a") {

                $duzina = strlen($cifra);

                        for ($duzina; $duzina < 10; $duzina++) {

                                $cifra = "0". $cifra;

                        }

        }

        return $cifra;

}

if ((!empty($broj)) && (!empty($ponavljanja))) {

set_time_limit(0); 

$txt = "";

print "Your generated list of numbers ready to download in .txt -> <a href='?get=brojevi.txt'>brojevi.txt</a><br><br>";

                print "<select name=\"select\" id=\"select\" class='input'>";

        for($i='1'; $i<=$ponavljanja; $i++) {

                $cifra = GenMOD11("$broj");

                $cifra = napravi10("$cifra");

                $txt .= "$cifra \r\n";

                print "<option value='$cifra'>$cifra</option>";

                $broj++;

        }

                print "</select>";

$fajl = 'brojevi.txt';

$open = fopen($fajl, 'w');

$write = fwrite($open, $txt);

$close = fclose($open);

}

?>

</body>

</html>