教你快速实现PHP全站权限验证_PHP教程
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html
php
title
程式碼
實現
快速
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權限
範例
驗證
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------------------
<ol class="dp-xml">
<li class="alt"><span><span class="tag"><span> ? </span></span></span></li>
<li>
<span>$</span><span class="attribute">username</span><span>=$_POST['username']; </span>
</li>
<li class="alt">
<span>$</span><span class="attribute">password</span><span>=$_POST['password']; </span>
</li>
<li>
<span>if ($</span><span class="attribute">username</span><span>==""){ </span>
</li>
<li class="alt">
<span>echo "</span><span class="tag"><span> </span><span class="tag-name">script</span><span> </span><span class="attribute">language</span><span>=</span><span class="attribute-value">'javascript'</span><span class="tag">></span><span> <br>alert('非法操作!'); </span><span class="attribute">location.href</span><span>=<br></span><span class="attribute-value">'index.php'</span><span>; </span><span class="tag"><span> /script</span><span class="tag">></span><span>"; </span></span></span>
</li>
<li><span>exit; </span></li>
<li class="alt"><span>} </span></li>
<li><span>require_once("conn.php"); </span></li>
<li class="alt">
<span>$</span><span class="attribute">sql</span><span>=</span><span class="attribute-value">"SELECT * FROM admin where<br> username='$username'"</span><span>; </span>
</li>
<li>
<span>$</span><span class="attribute">result</span><span>=</span><span class="attribute-value">mysql_query</span><span>($sql); </span>
</li>
<li class="alt">
<span>$</span><span class="attribute">row</span><span>=</span><span class="attribute-value">mysql_fetch_array</span><span>($result); </span>
</li>
<li><span>if ($row['username']==""){ </span></li>
<li class="alt">
<span>echo "</span><span class="tag"><span> </span><span class="tag-name">script</span><span> </span><span class="attribute">language</span><span>=</span><span class="attribute-value">'javascript'</span><span class="tag">></span><span> <br>alert('用户名有误!'); </span><span class="attribute">location.href</span><span>=<br></span><span class="attribute-value">'index.php'</span><span>; </span><span class="tag"><span> /script</span><span class="tag">></span><span>"; </span></span></span>
</li>
<li><span>exit; </span></li>
<li class="alt"><span>}else if ($row['password']!=$password){ </span></li>
<li>
<span>echo "</span><span class="tag"><span> </span><span class="tag-name">script</span><span> </span><span class="attribute">language</span><span>=</span><span class="attribute-value">'javascript'</span><span class="tag">></span><span> <br>alert('密码有误!'); </span><span class="attribute">location.href</span><span>=</span><span class="attribute-value">'index<br>.php'</span><span>; </span><span class="tag"><span> /script</span><span class="tag">></span><span>"; </span></span></span>
</li>
<li class="alt"><span>echo "密码有误"; </span></li>
<li><span>exit; </span></li>
<li class="alt"><span>}else{ </span></li>
<li><span>session_start(); </span></li>
<li class="alt"><span>$_SESSION['user']=$username; </span></li>
<li>
<span>echo "</span><span class="tag"><span> </span><span class="tag-name">script</span><span> </span><span class="attribute">language</span><span>=</span><span class="attribute-value">'javascript'</span><span class="tag">></span><span> <br>alert('登陆成功!'); </span><span class="attribute">location.href</span><span>=<br></span><span class="attribute-value">'list.php'</span><span>; </span><span class="tag"><span> /script</span><span class="tag">></span><span>"; </span></span></span>
</li>
<li class="alt"><span>} </span></li>
<li>
<span class="tag">?></span><span> </span>
</li>
</ol>登入後複製
------------------check.php--------------------
<ol class="dp-xml">
<li class="alt"><span><span class="tag"><span> ? </span></span></span></li>
<li><span>session_start(); </span></li>
<li class="alt"><span>if(! isset($_SESSION['user'])) </span></li>
<li><span>{ </span></li>
<li class="alt">
<span>echo "</span><span class="tag"><span> </span><span class="tag-name">script</span><span> </span><span class="attribute">language</span><span>=</span><span class="attribute-value">'javascript'</span><span class="tag">></span><span> <br>alert('非法操作!'); </span><span class="attribute">location.href</span><span>=<br></span><span class="attribute-value">'index.php'</span><span>; </span><span class="tag"><span> /script</span><span class="tag">></span><span>"; </span></span></span>
</li>
<li><span>exit; </span></li>
<li class="alt"><span>}else{ </span></li>
<li><span>echo "欢迎".$_SESSION['user']<br>."登录系统"; </span></li>
<li class="alt"><span>} </span></li>
<li>
<span class="tag">?></span><span> </span>
</li>
</ol>登入後複製
---------------------list.php-----------------
<ol class="dp-xml">
<li class="alt"><span><span class="tag"><span> ? </span></span></span></li>
<li><span>include 'check.php'; </span></li>
<li class="alt">
<span class="tag">?></span><span> </span>
</li>
<li><span class="tag"><span> </span><span class="tag-name">html</span><span class="tag">></span><span> </span></span></li>
<li class="alt"><span class="tag"><span> </span><span class="tag-name">head</span><span class="tag">></span><span> </span></span></li>
<li><span class="tag"><span> </span><span class="tag-name">script</span><span> </span><span class="attribute">type</span><span>=</span><span class="attribute-value">"text/javascript"</span><span> <br></span><span class="attribute">src</span><span>=</span><span class="attribute-value">"player/swfobject.js"</span><span class="tag">></span><span class="tag"><span> /script</span><span class="tag">></span><span> </span></span></span></li>
<li class="alt"><span class="tag"><span> /head</span><span class="tag">></span><span> </span></span></li>
<li><span class="tag"><span> </span><span class="tag-name">body</span><span class="tag">></span><span> </span></span></li>
<li class="alt"><span class="tag"><span> </span><span class="tag-name">h3</span><span class="tag">></span><span>单个文件播放:</span><span class="tag"><span> /h3</span><span class="tag">></span><span> </span></span></span></li>
<li><span class="tag"><span> </span><span class="tag-name">p</span><span> </span><span class="attribute">id</span><span>=</span><span class="attribute-value">"player1"</span><span class="tag">></span><span class="tag"><span> </span><span class="tag-name">a</span><span> </span><span class="attribute">href</span><span>=</span><span class="attribute-value">"<br>http://www.macromedia.com/go/<br>getflashplayer"</span><span class="tag">></span><span>获取播放器</span><span class="tag"><span> /a</span><span class="tag">></span><span> 观看电影</span><span class="tag"><span> /p</span><span class="tag">></span><span> </span></span></span></span></span></li>
<li class="alt"><span class="tag"><span> </span><span class="tag-name">script</span><span> </span><span class="attribute">type</span><span>=</span><span class="attribute-value">"text/javascript"</span><span class="tag">></span><span> </span></span></li>
<li>
<span>var </span><span class="attribute">s1</span><span> = </span><span class="attribute-value">new</span><span> SWFObject("player/<br>flvplayer.swf","single","300","170","7"); </span>
</li>
<li class="alt"><span>s1.addParam("allowfullscreen","true"); </span></li>
<li><span>s1.addVariable("file","player/ad.flv"); </span></li>
<li class="alt"><span>s1.addVariable("image","player/preview.jpg"); </span></li>
<li><span>s1.addVariable("width","300"); </span></li>
<li class="alt"><span>s1.addVariable("height","170"); </span></li>
<li><span>s1.write("player1"); </span></li>
<li class="alt"><span class="tag"><span> /script</span><span class="tag">></span><span> </span></span></li>
<li><span class="tag"><span> </span><span class="tag-name">h3</span><span class="tag">></span><span>playlist file, with different <br>colors:</span><span class="tag"><span> /h3</span><span class="tag">></span><span> </span></span></span></li>
<li class="alt"><span class="tag"><span> </span><span class="tag-name">p</span><span> </span><span class="attribute">id</span><span>=</span><span class="attribute-value">"player2"</span><span class="tag">></span><span class="tag"><span> </span><span class="tag-name">a</span><span> </span><span class="attribute">href</span><span>=</span><span class="attribute-value">"http:<br>//www.macromedia.com/go/getflashplayer"</span><span class="tag">><br></span><span>Get the Flash Player</span><span class="tag"><span> /a</span><span class="tag">></span><span> to see this player.</span><span class="tag"><span> /p</span><span class="tag">></span><span> </span></span></span></span></span></li>
<li><span class="tag"><span> </span><span class="tag-name">script</span><span> </span><span class="attribute">type</span><span>=</span><span class="attribute-value">"text/javascript"</span><span class="tag">></span><span> </span></span></li>
<li class="alt">
<span>var </span><span class="attribute">s2</span><span> = </span><span class="attribute-value">new</span><span> SWFObject("player/flvplayer<br>.swf","playlist","300","312","7"); </span>
</li>
<li><span>s2.addParam("allowfullscreen","true"); </span></li>
<li class="alt"><span>s2.addVariable("file","player/playlist.xml"); </span></li>
<li><span>s2.addVariable("displayheight","200"); </span></li>
<li class="alt"><span>s2.addVariable("backcolor","0x000000"); </span></li>
<li><span>s2.addVariable("frontcolor","0xCCCCCC"); </span></li>
<li class="alt"><span>s2.addVariable("lightcolor","0x557722"); </span></li>
<li><span>s2.addVariable("width","300"); </span></li>
<li class="alt"><span>s2.addVariable("height","312"); </span></li>
<li><span>s2.write("player2"); </span></li>
<li class="alt"><span class="tag"><span> /script</span><span class="tag">></span><span> </span></span></li>
<li><span class="tag"><span> /body</span><span class="tag">></span><span> </span></span></li>
<li class="alt"><span class="tag"><span> /html</span><span class="tag">></span><span> </span></span></li>
</ol>登入後複製
--------------------logout.php-------------------------
<ol class="dp-xml"> <li class="alt"><span><span class="tag"><span> ?php </span></span></span></li> <li><span>unset($_SESSION['user']); </span></li> <li class="alt"><span>unset($_SESSION['password']); </span></li> <li><span>echo "注销成功"; </span></li> <li class="alt"> <span class="tag">?></span><span> </span> </li> </ol>
登入後複製
以上就是PHP全站权限验证的具体实现方法。
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