<?php
include('catext.class.php');
include('camath.class.php');
/***** FORM HANDLE *****/
echo "<h2><font color=\"red\">";
if(isset($_POST[submit_ctext])){
if(md5(trim($_POST[code])) == trim($_POST[code_ori]))
echo "Code accepted..";
else
echo "Code False!!!";
}
if(isset($_POST[submit_cmath])){
// use proper encryption function
if(md5(trim($_POST[code])) == trim($_POST[code_ori]))
echo "Code accepted..";
else
echo "Code False!!!";
}
echo "</font></h2>";
/***** END FORM HANDLE *****/
// create
$cText = new catext;
$cMath= new camath;
?>
<h3>Example for caText and caMath class with md5 encryption..</h3>
<p>This class used for preventing robot or non human to posting via form.
I don't like use captcha because i usually disabled displaying image on my browser setting.
So I build this class :).</p>
<p>For general purpose, this class can protect your web form.
But, i think this class is easier to break than real captcha.. so used it at your own risk.</p>
<br><br>
<b># <u> caText example:</u></b>
<br /><br />
<form method=post action="">
<input type="text" name="name"> Name<br>
<textarea name="comment" rows="5" cols="30">your comment here..</textarea>
<br>
<?php $cText->generate(); ?> <input type="text" name="code" size="5">
<input type="hidden" name="code_ori" value="<? echo md5($cText->get_key());?>">
<br>
<input type="submit" name="submit_ctext">
</form>
<br>
<b># <u>caMath example:</u></b>
<br /><br />
<form method=post action="">
<input type="text" name="name"> Name<br>
<textarea name="comment" rows="5" cols="30">your comment here..</textarea>
<br>
<?php $key_ori = $cMath->generate('md5'); ?> <input type="text" name="code" size="5">
<input type="hidden" name="code_ori" value="<? echo $key_ori;?>">
<br>
<input type="submit" name="submit_cmath">
</form>
<br>
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