./e/class/connect.php 

//设置验证码
function ecmsSetShowKey($varname,$val,$ecms=0,$isadmin=0){
	global $public_r;
	$pubkeyrnd=$isadmin==1?$public_r['hkeyrnd']:$public_r['keyrnd'];
	$time=time();
	$checkpass=md5('d!i#g?o-d-'.md5(md5($varname.'E.C#M!S^e-'.$val).'-E?m!P.i#R-e'.$time).$pubkeyrnd.'P#H!o,m^e-e');
	$key=$time.','.$checkpass.',EmpireCMS';
	esetcookie($varname,$key,0,$ecms);
}

//检查验证码     checkloginkey,8227,1
function ecmsCheckShowKey($varname,$postval,$dopr,$ecms=0,$isadmin=0){
	global $public_r;
	$postval=trim($postval);
	if($isadmin==1)
	{
		$pubkeytime=$public_r['hkeytime'];
		$pubkeyrnd=$public_r['hkeyrnd'];
	}
	else
	{
		$pubkeytime=$public_r['keytime'];
		$pubkeyrnd=$public_r['keyrnd'];
	}
	$r=explode(',',getcvar($varname,$ecms));//checkloginkey,0
	$cktime=(int)$r[0];
	$pass=$r[1];
	$val=$r[2];
	$time=time();
	if($cktime>$time||$time-$cktime>$pubkeytime)
	{
		printerror('OutKeytime','',$dopr);
	}
	if(empty($postval))
	{
		printerror('FailKey','',$dopr);
	}
	$checkpass=md5('d!i#g?o-d-'.md5(md5($varname.'E.C#M!S^e-'.$postval).'-E?m!P.i#R-e'.$cktime).$pubkeyrnd.'P#H!o,m^e-e');
	if('dg'.$checkpass<>'dg'.$pass)
	{
		printerror('FailKey','',$dopr);
	}
}

//清空验证码
function ecmsEmptyShowKey($varname,$ecms=0,$isadmin=0){
	esetcookie($varname,'',0,$ecms);
}