PHP 前台代码兑现获取用户密码功能

<br />
$Password = "assssssss";<br />
$num = 0;<br />
<br />
if(preg_match("/[A-Z]/",$Password)){<br />
	$num ++;<br />
}<br />
<br />
if(preg_match("/[0-9]/",$Password)){<br />
	$num ++;<br />
}<br />
if(preg_match("/[a-z]/",$Password)){<br />
	$num ++;<br />
}<br />
if(preg_match("/[^A-Za-z0-9]/",$Password)){<br />
	$num ++;<br />
}<br />
if($num>=2 && strlen($Password)>=6 && strlen($Password)<=16 ){<br />
   //<br />
}else{<br />
  //提示代码<br />
}<br />