Location: PHPKode > scripts > Easy CAPTCHA > index.php
<?php
   require_once('captcha.php');
   session_start();
   $captcha = new captcha();
   $_message = '';
   if(isset($_REQUEST['Submit'])){
      if( $captcha->check( $_REQUEST['number'] ) ) {
          $_message = '<center><font face="Verdana, Arial, Helvetica, sans-serif"  color="#66CC00">Your string is valid!</font></center>'; 

      }else{
          $_message = '<center><font face="Verdana, Arial, Helvetica, sans-serif" color="#FF0000">Validation string not valid! Please try again!</font></center>';         
      }

   }
   $captcha->createCaptcha();
   $_urlCaptcha = $captcha->getUrlCaptcha();
?>
<HTML>
<HEAD>
<TITLE>EASY-CAPTCHA </TITLE>
<META HTTP-EQUIV=\"Content-Type\" CONTENT=\"text/html; charset=iso-8859-1\">
</HEAD>
<BODY onLoad="return focuson();">

<?php echo $_message ?>
<form name="form1" method="post" action="index.php">
<table width="342" align="center" cellspacing="0" bgcolor="#F2F2F2">
<tr>
  <td colspan="4" align="center"><hr></td>
  </tr>
<tr>
  <td align="center">&nbsp;</td>
  <td align="center">&nbsp;</td>
  <td align="center"><img src="<?php echo $_urlCaptcha  ?>"></td>
  <td align="center">&nbsp;</td>
</tr>  
<tr>
  <td align="center">&nbsp;</td>
  <td align="center"> Please enter the string shown in the image in the form.<br></td>
  <td align="center"><input name="number" type="text" id=\&quot;number\&quot;></td>
  <td align="center">&nbsp;</td>
</tr>
<tr>
  <td align="center">&nbsp;</td>
  <td align="center">&nbsp;</td>
  <td align="center"><input name="Submit" type="submit"   value="Submit"></td>
  <td align="center">&nbsp;</td>
</tr>
<tr>
  <td colspan="4" align="center"><hr></td>
  </tr>
</table>
</form>
</BODY>
</HTML>
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