php全站权限验证代码示例：
 html>   head> title>e     /title>   /head>   body>   form action=login.php 
method=post > 用户：
 input type=text 
name=username>   br> 密码：
 input type=password 
name=password>   input type =submit
 value =确定>   input type =reset
 value =取消>   /form>   /body>   /html> 
----------------conn.php--------------------------
 ?php   $host='127.0.0.1';   $mysql_user='root';   $mysql_password='qeephp';   $mydb='learn';   $link = mysql_connect($host, 
$mysql_user , $mysql_password)   or die(无法连接数据库:  
. mysql_error());   mysql_select_db($mydb);   ?> 
----------------------------login.php------------------
?  $username=$_post['username'];  $password=$_post['password'];  if ($username==){  echo  script language='javascript'> 
alert('非法操作!'); location.href=
'index.php';  /script>;  exit;  }  require_once(conn.php);  $sql=select * from admin where
 username='$username';  $result=mysql_query($sql);  $row=mysql_fetch_array($result);  if ($row['username']==){  echo  script language='javascript'> 
alert('用户名有误!'); location.href=
'index.php';  /script>;  exit;  }else if ($row['password']!=$password){  echo  script language='javascript'> 
alert('密码有误!'); location.href='index
.php';  /script>;  echo 密码有误;  exit;  }else{  session_start();  $_session['user']=$username;  echo  script language='javascript'> 
alert('登陆成功!'); location.href=
'list.php';  /script>;  }  ?> 
------------------check.php--------------------
?  session_start();   if(! isset($_session['user']))   {   echo  script language='javascript'> 
alert('非法操作!'); location.href=
'index.php';  /script>;  exit;  }else{  echo 欢迎.$_session['user']
.登录系统;   }  ?> 
---------------------list.php-----------------
?  include 'check.php';  ?>  html>  head>  script type=text/javascript 
src=player/swfobject.js> /script>  /head>  body>  h3>单个文件播放: /h3>  p id=player1> a href=
http://www.macromedia.com/go/
getflashplayer>获取播放器 /a> 观看电影 /p>  script type=text/javascript> var s1 = new swfobject(player/
flvplayer.swf,single,300,170,7);  s1.addparam(allowfullscreen,true);  s1.addvariable(file,player/ad.flv);  s1.addvariable(image,player/preview.jpg);  s1.addvariable(width,300);  s1.addvariable(height,170);  s1.write(player1);   /script>  h3>playlist file, with different 
colors: /h3>  p id=player2> a href=http:
//www.macromedia.com/go/getflashplayer>
get the flash player /a> to see this player. /p>  script type=text/javascript> var s2 = new swfobject(player/flvplayer
.swf,playlist,300,312,7);  s2.addparam(allowfullscreen,true);  s2.addvariable(file,player/playlist.xml);  s2.addvariable(displayheight,200);  s2.addvariable(backcolor,0x000000);  s2.addvariable(frontcolor,0xcccccc);  s2.addvariable(lightcolor,0x557722);  s2.addvariable(width,300);  s2.addvariable(height,312);  s2.write(player2);   /script>  /body>  /html> 
--------------------logout.php-------------------------
?php   unset($_session['user']);   unset($_session['password']);   echo 注销成功;   ?> 
以上就是php全站权限验证的具体实现方法。
http://www.bkjia.com/phpjc/445984.htmlwww.bkjia.comtruehttp://www.bkjia.com/phpjc/445984.htmltecharticlephp全站权限验证代码示例： html head title e /title /head body form action = login.php method = post 用户： input type = text name = username br 密码： input type =...