用PHP为SHOPEX增加日志功能代码

// 插入SHOPEX首页index.php代码块中 
// 查看PHP中的变量其实挺简单的 
// 用一个函数 phpinfo() 足以查看 
$fp = fopen("log.txt","a+"); 
fwrite($fp,date("Y-m-d H:i:s")); 
fwrite($fp,"\t"); 
fwrite($fp,$_SERVER['REMOTE_ADDR']); 
fwrite($fp,"\t"); 
fwrite($fp,$_SERVER['HTTP_X_REWRITE_URL']); 
fwrite($fp,"\t"); 
fwrite($fp,$_SERVER['HTTP_USER_AGENT']); 
fwrite($fp,"\t"); 
fwrite($fp,$_SERVER["HTTP_REFERER"]); 
fwrite($fp,"\n"); 
fclose($fp);