插件92：忽略检测码或检测字

<?php // Plug-in 92: Captcha Bypass
/*
* 忽略检测码或检测字
* 插件说明：
* 插件不接受任何参数，但是如果认为当前用户是人，则返回TRUE,否则返回FALSE
*/
// This is an executable example with additional code supplied
// To obtain just the plug-ins please click on the Download link

$result = PIPHP_CaptchaBypass();
if (!$result) echo "A Captcha <b>should</b> probably be used.";
else echo "A Captcha probably <b>isn't</b> required.";

echo "<br /><a href='$_SERVER[PHP_SELF]'>Now click here</a>";

function PIPHP_CaptchaBypass()
{
   // Plug-in 92: Captcha Bypass
   //
   // This plug-in checks whether it looks like a real person
   // is using your website and returns TRUE if so, otherwise
   // it returns FALSE. It requires no arguments

   if (isset($_SERVER['HTTP_REFERER']) &&
       isset($_SERVER['HTTP_USER_AGENT']))
         return TRUE;
   return FALSE;
}

?>