在线增减.htpasswd内的用户 <?php   include("./class.Htpasswd.php3");   /* 请修改此.htpasswd文件路径   */   $htpasswdfile = "/usr2/amitc/.htpasswd";   // 此行请勿修改   echo '<FORM ACTION="'.$PHP_SELF . '" METHOD=POST>';   ?>   <Table BORDER><TR>   <TD>Username: </TD>   <TD><INPUT TYPE=text name="username"></TD>   </TR><TR>   <TD>Password: </TD>   <TD><INPUT TYPE=text name="password"></TD>   </TR><TR>   <TD>   <INPUT TYPE=radio NAME=doop VALUE="verify" CHECKED> Verify Password <BR>   <INPUT TYPE=radio NAME=doop VALUE="add" > 加入新用户<BR>   <INPUT TYPE=radio NAME=doop VALUE="delete" > 删除用户 <BR>   <INPUT TYPE=radio NAME=doop VALUE="change" > 更改密码 <BR>   </TD>   <TD>   <INPUT TYPE=submit name="operation">   </TD></TR>   </TR>   </TABLE>   </FORM>   <?php   if(!isset($operation)) {   }   else {   echo "<FONT COLOR=RED> <HR>";   echo "您刚进行了此项操作,请核查 <BR><HR>";   echo "您要对用户 $username 及密码 $password 进行 = [$doop] <BR>";   $handle = new Htpasswd($htpasswdfile);   switch ($doop) {   case 'add':   print "用户<BR>";   $retval = $handle->addUser($username, $password);   if($retval) {   print "用户 [$username] 加入成功!<BR>";   } else {   print "加入用户 [$username] 失败.<BR>";   }   break;   case 'change':   print '修改密码<BR>';   $retval = $handle->changePass($username, $password);   if($retval) {   print "[$username] 的密码修改成功.<BR>";   } else {   print "[$username] 的密码修改失败.<BR>";   }   break;   case 'delete':   print '删除用户<BR>';   $retval = $handle->deleteUser($username);   if($retval) {   print "[$username] 被删除.<BR>";   } else {   print "删除 [$username]时发生错误.<BR>";   }   break;   case 'verify':   print 'Code to verify user's password<BR>';   $retval = $handle->verifyUser($username, $password);   if($retval) {   print "[$username] verifies okay with password [$password]<BR>";   } else {   print "Verify Error for [$username] with [$password] (wrong password or user doesn't exist!) <BR>";   }   break;   default:   print '您要中断? <BR>';   }   echo "</FONT>";   }   ?>