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php后臺(tái)多用戶權(quán)限組思路與實(shí)現(xiàn)程序代碼分享

更新時(shí)間：2012年02月13日 22:47:03 作者：

很多時(shí)候我們?cè)匍_(kāi)發(fā)過(guò)程中需要考慮到多用戶權(quán)限問(wèn)題，這篇文章大家可以參考下

adminconfig.php 這是后臺(tái)系統(tǒng)中所有文件權(quán)限配置。
fun.php 這是一個(gè)功能函數(shù)
left.php 網(wǎng)站后臺(tái)根據(jù)用戶登錄的ID來(lái)加載相對(duì)應(yīng)的功能菜單
op.php 調(diào)用adminconfig.php 默認(rèn)權(quán)限文件
opsava.php 保存用戶權(quán)限成一個(gè)php文件
好了我們先來(lái)看看 fun.php文件吧。

復(fù)制代碼代碼如下:

 
<? 
function findsub($keys ,$userid='abc' ) //此函數(shù)重要就是為了調(diào)用用戶的權(quán)限信息 
{ 
include('user/'.$userid.'.php'); 
foreach($bb as $key=>$submenu) 
{ 
foreach($submenu as $subkey=>$menuitem) 
{ 
if( $subkey == $keys ) 
{ 
return 1; 
} 
} 
} 
} 
//下面為生成用戶的php權(quán)限文件 
//寫(xiě)入 
function cache_write($name, $var, $values) { 
$cachefile = 'op/www.hzhuti.com/'.$name.'.php'; 
$cachetext = "<?phprn".'$'.$var.'='.arrayeval($values)."rn?>"; 
if(!swritefile($cachefile, $cachetext)) 
{ 
exit("File: $cachefile write error."); 
} 
} 
//數(shù)組轉(zhuǎn)換成字串 
function arrayeval($array, $level = 0) { 
$space = ''; 
for($i = 0; $i <= $level; $i++) { 
$space .= "t"; 
} 
$evaluate = "Arrayn$space(n"; 
$comma = $space; 
foreach($array as $key => $val) { 
$key = is_string($key) ? '''.addcslashes($key, ''\').''' : $key; 
$val = !is_array($val) && (!preg_match("/^-?d+$/", $val) || strlen($val) > 12) ? '''.addcslashes($val, ''\').''' : $val; 
if(is_array($val)) { 
$evaluate .= "$comma$key => ".arrayeval($val, $level + 1); 
} else { 
$evaluate .= "$comma$key => $val"; 
} 
$comma = ",n$space"; 
} 
$evaluate .= "n$space)"; 
return $evaluate; 
} 
//寫(xiě)入文件 
function swritefile($filename, $writetext, $openmod='w') { 
if(@$fp = fopen($filename, $openmod)) { 
flock($fp, 2); 
fwrite($fp, $writetext); 
fclose($fp); 
return true; 
} else { 
exit("File: $filename write error."); 
return false; 
} 
} 
?> 

adminconfig.php 后臺(tái)權(quán)限配置文件,以一個(gè)數(shù)組形式保存

復(fù)制代碼代碼如下:

 
<? 
$menus = array( 
'news' => array( 
'caption'=>'資訊管理', 
'icon'=>'admin/icon_15.gif', 
'sub' => array( 
'newsaddtype' => array('caption' => '分類(lèi)增加', 'url' => 'news/addtype.php'), 
'newstypemange' => array('caption' => '分類(lèi)管理', 'url' => 'news/typemange.php'), 
'newsnewsend' => array('caption' => '發(fā)布資訊', 'url' => 'news/newsend.php'), 
'newsnewmange' => array('caption' => '資訊管理', 'url' => 'news/newmange.php'), 
'newscomments' => array('caption' => '評(píng)論管理', 'url' => 'news/comments.php'), 
), 
), 
'ask' => array( 
'caption'=>'問(wèn)卷調(diào)查', 
'icon'=>'admin/icon_15.gif', 
'sub' => array( 
'voteadmin_subject_add' => array('caption' => '添加投票主題', 'url' => 'vote/admin_subject_add.php'), 
'voteadmin_subject' => array('caption' => '管理投票主題', 'url' => 'vote/admin_subject.php'), 
'voteadmin_title_add' => array('caption' => '添加投票問(wèn)題', 'url' => 'vote/admin_title_add.php'), 
'voteadmin_title' => array('caption' => '管理投票問(wèn)題', 'url' => 'vote/admin_title.php'), 
'voteadmin_question_add' => array('caption' => '添加投票答案', 'url' => 'vote/admin_question_add.php'), 
'voteadmin_question' => array('caption' => '管理投票答案', 'url' => 'vote/admin_question.php'), 
'voteadmin_system' => array('caption' => '投票初始配置', 'url' => 'vote/admin_system.php') 
), 
), 
'ads' => array( 
'caption'=>'廣告管理', 
'icon'=>'admin/icon_15.gif', 
'sub' => array( 
'ada' => array('caption' => '增加廣告', 'url' => 'ada.php'), 
'adm' => array('caption' => '廣告管理', 'url' => 'adm.php'), 
'flashadd' => array('caption' => '焦點(diǎn)圖廣告增加', 'url' => 'flashadd.php'), 
'flashad' => array('caption' => '焦點(diǎn)圖廣告管理', 'url' => 'flashad.php') 
), 
), 
'mange' => array( 
'caption'=>'系統(tǒng)管理員', 
'icon'=>'admin/icon_15.gif', 
'sub' => array( 
'adminuser' => array('caption' => '管理員添加', 'url' => 'adminuser.php'), 
'modpass' => array('caption' => '密碼修改', 'url' => 'modpass.php') 
), 
), 
); 
?> 

left.php文件很簡(jiǎn)單就是根據(jù)用戶登錄后ID讀出權(quán)限

復(fù)制代碼代碼如下:

 
<? 
$userid = $_SESSION['adminid']; 
include("op/admincofig.php"); 
include("op/ www.hzhuti.com /".$userid.".php"); 
foreach($bb as $key=>$submenu) 
{ 
echo "<tr><td bgcolor="#D879A7" style="line-height:22px;text-align:center;color:#ffffff;"> nr <font color="#EA6A8D" face="Webdings"></font><b>".$menus[$key]['caption']."</b><br /></td></tr> nr <tr ><td bgcolor="F5E8F1">"; 
foreach($submenu as $subkey=>$menuitem) 
{ 
$tmparr = explode("|",$menuitem); 
echo "<font color="#EA6A8D" face="Webdings">4</font><a href='".$tmparr[1]."' target="mainframe">".$tmparr[0]."</a><br> nr"; 
} 
echo "</td></tr> nr "; 
} 

op.php這個(gè)文件就是要調(diào)用我們的adminconfig.php文件，然后利用fun.php文件中函數(shù)把提供過(guò)來(lái)的數(shù)據(jù)保存成數(shù)組如圖

點(diǎn)擊保存我們調(diào)用了opsava.php 文件，代碼如下

復(fù)制代碼代碼如下:

 
<? 
include("op/fun.php"); 
if( $_POST ) 
{ 
$sarray = $_POST ; 
cache_write($userid,'bb',$sarray);//寫(xiě)入緩存 
echo "<script>alert('編輯保存成功！');location='op.php?userid=".$userid."';</script>"; 
} 
?> 

保存成功后文件內(nèi)容如

復(fù)制代碼代碼如下:

 
<?php 
$bb=Array 
( 
'member' => Array 
( 
'user_search' => '會(huì)員升級(jí)管理|user_search.php' 
), 
'membercy' => Array 
( 
'cyuser_search' => '會(huì)員升級(jí)管理|cyuser_search.php', 
'cyuser_search5' => '交友會(huì)員|cyuser_search.php?grade=5' 
), 
'userid' => 7, 
'button' => '保存編輯' 
) 
?> 