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;}?>