function.php

PHP整站程序

<?
require "config.php";
foreach($_GET as $_key=>$_value){
	$_GET[$_key]=str_replace('$','&ensp;$',$_GET[$_key]);
	$$_key=$_GET[$_key];
}
foreach($_POST as $_key=>$_value){
	$_POST[$_key]=str_replace('$','&ensp;$',$_POST[$_key]);
	$$_key=$_POST[$_key];
}

function login($username,$passwd){
global $cookie_name;

if ($username=="" || $passwd==""):
echo "用户名或密码不能为空";
echo "<META HTTP-EQUIV=REFRESH CONTENT='0;URL=index.php'>";
exit;
endif;


$result=mysql_query("select * from admin where username='$username'") or die(mysql_error());
$array=mysql_fetch_array($result);



if (!$array[id]):
echo "用户名错误";
echo "<META HTTP-EQUIV=REFRESH CONTENT='0;URL=index.php'>";
exit;
endif;

if ($passwd != $array[password]):
echo "密码错误";
echo "<META HTTP-EQUIV=REFRESH CONTENT='0;URL=index.php'>";
exit;
endif;

setcookie ($cookie_name."_user",$username,time()+(1*24*3600));
setcookie ($cookie_name."_pass",$passwd,time()+(1*24*3600));

echo "登录成功!";
echo "<META HTTP-EQUIV=REFRESH CONTENT='0;URL=index1.php'>";

exit;
}

function islogin($username,$passwd){


// 如果cookie[用户名/密码]为空, 跳转到登录页面
if ($username=="" || $passwd==""):
header ("Location:index.php");
exit;
endif;

// 获得用户名下的密码

$result = mysql_query ("SELECT * from admin where username='$username'")
  or die ("不能连接数据库");
$line = mysql_fetch_array($result);

// 如果cookie[密码]不正确, 跳转到登录页面

if ($line[password] != $passwd):
header ("Location:index.php");
exit;
endif;


} // end checklogin
function logout(){
global $cookie_name;
setcookie($cookie_name."_user","");
setcookie($cookie_name."_passwd","");
echo "退出成功";
echo "<META HTTP-EQUIV=REFRESH CONTENT='0;URL=index.php'>";
}

function listxydw($xydwpage,$xydwtable,$page_size)
{


if( isset($_GET['page']) ){
   $page = intval( $_GET['page'] );
}
else{
   $page = 1;
}




$result = mysql_query("select count(*) as amount from $xydwtable");
$row = mysql_fetch_row($result);
$amount = $row[0];

if( $amount ){
   if( $amount < $page_size ){ $page_count = 1; }           
   if( $amount % $page_size ){                                 
       $page_count = (int)($amount / $page_size) + 1;        
   }else{
       $page_count = $amount / $page_size;                   
   }
}
else{
   $page_count = 0;
}

// 翻页链接
$page_string = '';
if( $page == 1 ){
   $page_string .= '第一页|上一页|';
   
}
else{
   $page_string .= '<a href='.$xydwpage.'?page=1>第一页</a>|<a href='.$xydwpage.'?page='.($page-1).'>上一页</a>|';
}
if( ($page == $page_count) || ($page_count == 0) ){
   $page_string .= '下一页|尾页 共'.$page_count.'页 ';
}
else{
   $page_string .= '<a href='.$xydwpage.'?page='.($page+1).'>下一页</a>|<a href='.$xydwpage.'?page='.$page_count.'>尾页</a> 共'.$page_count.'页';
}

echo"<br><br>$page_string <br><br>";



}

?>