antispamex01.php
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<?php // content="text/plain; charset=utf-8"
// Antispam example using a random string
require_once "jpgraph/jpgraph_antispam.php";
 
// Create new anti-spam challenge creator
// Note: Neither '0' (digit) or 'O' (letter) can be used to avoid confusion
$spam = new AntiSpam();
 
// Create a random 5 char challenge and return the string generated
$chars = $spam->Rand(5);
 
// Stroke random cahllenge
if( $spam->Stroke() === false ) {
    die('Illegal or no data to plot');
}
 
?>