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PHP code:
<?php
include ("include/setting.inc.php");
include ("include/conn.php");
//var $_SESSION['admin'];
session_start();
mysql_query("SET NAMES 'UTF8'");
if(!isset($_SESSION['admin'])&&$_SESSION['admin']==false){
echo '<SCRIPT LANGUAGE="javascript">';
echo "alert('ÇëÏȵǼ');";
echo "location.href='login.php'";
echo '</SCRIPT>';
}
else{
$_SESSION['file']=""; //Õâ¸öÊÇÓÃÀ´¼Ç¼µ±Ç°Â·¾¶£¬µÈµÇ¼ºó·µ»Ø
}
$_SESSION['itemNum']; //¼Ç¼×ܹ²Óм¸ÖÖÊé
$bookid=$_GET['id'];
$str="select * from books where b_id=".$bookid;
$result=mysql_query($str);
$row=mysql_fetch_array($result);
if(isset($_SESSION['$bookid']['id'])){ //ÅжϹºÎï³µÊÇ·ñÓÐÕâ¸öÊ飬ÓеϰÊýÁ¿¼Ó1
$_SESSION['$bookid']['booknum']++;
}
else{
$_SESSION['$bookid']['id']=$row['b_i
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