前面瞭解瞭如何創建帖子和登陸註冊之後,接下來自然是要查看帖子了.
在查看帖子的頁面有點贊和收藏的功能,這裏我一併寫在了一起,其實應該要分開寫比較好.通過ajax不刷新頁面進行點贊和收藏.每次訪問後臺都要進行驗證用戶身份的操作,主要通過查看session和cookie
templates/view.php
<!DOCTYPE html>
<html>
<head>
<?php header("Content-type: text/html; charset=utf-8"); ?>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.4.3/jquery.mobile-1.4.3.min.css">
<script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
<script src="http://code.jquery.com/mobile/1.4.3/jquery.mobile-1.4.3.min.js"></script>
<script>
$(document).on("pagecreate", function(){
<!-- 利用ajax提交數據,不刷新整個頁面 -->
//如果對於ajax不熟悉,請去w3c自學.
$("#fav").click(function()
{
xmlhttp=new XMLHttpRequest();
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("fav").innerHTML="點贊"+xmlhttp.responseText;
}
}
xmlhttp.open("GET", "view.php?fav=1", true);
xmlhttp.send();
});
$("#col").click(function(){
xmlhttp=new XMLHttpRequest();
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
alert(xmlhttp.responseText);
}
}
xmlhttp.open("GET", "view.php?col=1", true);
xmlhttp.send();
});
});
</script>
</head>
<body>
<div data-role="page" id="view">
<div data-role="header">
<a class="ui-btn-left ui-icon-back ui-btn ui-btn-inline ui-mini ui-corner-all ui-btn-icon-left " data-rel="back" >返回</a>
<h1><?php echo $article['title'] ?></h1>
<?php
if($uid != $article['uid'])
echo '<a href="dialog.php?a=',$aid,'&touid=',$article['uid'],'" class="ui-btn-right ui-btn ui-btn-inline ui-mini ui-corner-all ui-btn-icon-right ui-icon-comment">評論</a>';
else
echo '<a href="edit.php?a=',$aid,'" class="ui-btn-right ui-btn ui-btn-inline ui-mini ui-corner-all ui-btn-icon-right ui-icon-edit">編輯</a>';
?>
</div>
<div role="main" class="ui-content">
<?php
$edittime=showtime($article['addtime']);
if($article['img_path']==null)
{
//設置屬性使pre標籤自動換行
echo '<p><pre style="white-space:pre-wrap; /* css3.0 */
white-space:-moz-pre-wrap; /* Firefox */
white-space:-pre-wrap; /* Opera 4-6 */
white-space:-o-pre-wrap; /* Opera 7 */
word-wrap:break-word; /* Internet Explorer 5.5+ */">',$article['content'],'</pre></p>
<p style="font-size:13px;">發佈於',$edittime,'</p>';
}
else
{
echo '<p><pre style="white-space:pre-wrap; /* css3.0 */
white-space:-moz-pre-wrap; /* Firefox */
white-space:-pre-wrap; /* Opera 4-6 */
white-space:-o-pre-wrap; /* Opera 7 */
word-wrap:break-word; /* Internet Explorer 5.5+ */">',$article['content'],'</pre></p>
<div style="text-align: center"><img style="width: 90%" src="',$article['img_path'],'"></div>
<p style="font-size:13px;">發佈於',$edittime,'</p>';
}
?>
<button data-inline="true" data-mini="true" id="fav" >點贊<?php echo $fav; ?></button>
<button data-inline="true" data-mini="true" id="col" >收藏</button>
<ul data-role="listview" data-inset="true" >
<li data-role="list-divider">逗論</li>
<?php
while ($comment_=mysql_fetch_array($query))
{
$touid=$comment_['touid'];
$query1=mysql_query("select name from users where id='$touid'");
$toname=mysql_fetch_array($query1);
Chromephp::log($comment_);
$ctime=showtime($comment_['addtime']);
echo '<li>
<img src="',$comment_['cover'],'"><p>',$comment_['name'],' 回覆 ',$toname['name'],':
',$comment_['content'],'</p>
<p>',$ctime,' </p>
<div>
<a href="dialog.php?a=',$aid,'&touid=',$comment_['uid'],'" class="ui-btn ui-btn-inline ui-mini ui-icon-comment ui-btn-right ui-btn-icon-right ">回覆</a>
</div>
</li>';
}
mysql_free_result($query);
?>
</ul>
<?php if ($p <= $pagenum-1)
{
# code...
// Chromephp::log("評論頁數".$pagenum);
$p += 1;
echo '<a class="ui-btn ui-btn-inlineui-corner-all" href="comment.php?a=',$aid,'&p=',$p,'" >更多評論</a>';
}
?>
<form method="POST" <?php echo 'action="view.php?a=',$_GET['a'],'&touid=',$article['uid'],'"' ?>>
<div data-role="fieldcontain">
<?php echo '<textarea placeholder="回覆',$aname['name'],': " name="comment"></textarea>' ?>
<input type="submit" value='提交' id="btn_comment"/>
</div>
</form>
</div>
</div>
</body>
</html>
view.php(接收get參數爲:a文章id,col收藏,fav點贊,post接收評論,考慮到評論多的情況,需要分頁顯示)
<?php
include('conn.php');
include('lib.php');
include('ChromePhp.php');
//使用會話內存儲的變量值之前必須先開啓會話
session_start();
// Chromephp::log($_SESSION['uid']);
// Chromephp::log($_SESSION['name']);
//每次打開帖子都記錄當前打開的帖子id
if(isset($_GET['a']))//如果打開新的帖子刷新cookie
setcookie('cur_aid', $_GET['a'], time()+3600);
//如果會話沒有被設置,查看是否設置了cookie
if(!isset($_SESSION['uid']))
{
if(isset($_COOKIE['uid'])&&isset($_COOKIE['name']))
{
//用cookie給session賦值
$_SESSION['uid']=$_COOKIE['uid'];
$_SESSION['name']=$_COOKIE['name'];
}
}
if($_SERVER['REQUEST_METHOD'] == 'GET')
{
//處理收藏事件,處理完結束腳本
if ($_GET['col']==1)
{
//判斷用戶是否登陸
if(!isset($_SESSION['uid']))
{
if(isset($_COOKIE['uid'])&&isset($_COOKIE['name']))
{
//用cookie給session賦值
$_SESSION['uid']=$_COOKIE['uid'];
$_SESSION['name']=$_COOKIE['name'];
}
else
{
echo "請先登陸";
exit();
}
}
$aid=$_COOKIE['cur_aid'];
$uid=$_SESSION['uid'];
//判斷用戶是否已經收藏過
ChromePhp::log($aid);
ChromePhp::log($uid);
$query=mysql_query("select count(*) as count from collects where aid='$aid' and uid='$uid'");
$count=mysql_fetch_array($query);
if($count['count']==1)
{
echo '你已經收藏過了';
exit();
}
$time=time();
if(mysql_query("insert into collects (uid, aid, time) values('$uid', '$aid', '$time')"))
echo "收藏成功";
else
echo "收藏失敗,請重試";
exit();
}
if($_GET['fav']==1)
{
if(!isset($_SESSION['uid']))
{
if(isset($_COOKIE['uid'])&&isset($_COOKIE['name']))
{
//用cookie給session賦值
$_SESSION['uid']=$_COOKIE['uid'];
$_SESSION['name']=$_COOKIE['name'];
}
else
{
exit();
}
}
$aid=$_COOKIE['cur_aid'];
$uid=$_SESSION['uid'];
ChromePhp::log($aid);
ChromePhp::log($uid);
$query=mysql_query("select count(*) as count from favorites where aid='$aid' and uid='$uid'");
$count=mysql_fetch_array($query);
//如果用戶已贊過
if($count['count']==1)
{
$query=mysql_query("select count(*) as count from favorites where aid ='$aid'");
$result=mysql_fetch_array($query);
$fav=$result['count'];
echo '('.$fav.')';
exit();
}
//點贊數增加
if(mysql_query("insert into favorites (uid, aid) values('$uid', '$aid')"))
{
$query=mysql_query("select count(*) as count from favorites where aid ='$aid'");
$result=mysql_fetch_array($query);
$fav=$result['count'];
echo '('.$fav.')';
exit();
}
}
//獲取文章作者名字
$uid=$_SESSION['uid'];
$aid=$_GET['a'];
$query=mysql_query("select users.name from articles,users where articles.id='$aid' and articles.uid=users.id");
$aname=mysql_fetch_array($query);
//獲取文章
$sql="select * from articles where id = $aid";
$query=mysql_query($sql);
$article=mysql_fetch_assoc($query);
//獲取評論
//分頁代碼
//計算留言總數
$count_result = mysql_query("SELECT count(*) as count FROM comments where aid='$aid'");
$count_array = mysql_fetch_array($count_result);
//計算總的頁數
$pagenum=ceil($count_array['count']/$pagesize);
//ChromePhp::log($count_array['count']);
//確定當前頁數 $p 參數
$p = $_GET['p']?$_GET['p']:1;
//數據指針
$offset = ($p-1)*$pagesize;
//獲取點贊數
$query=mysql_query("select count(*) as count from favorites where aid ='$aid'");
$result=mysql_fetch_assoc($query);
$fav=$result['count'];
if($fav==0)
$fav="";
else
$fav='('.$fav.')';
// ChromePhp::log($pagenum);
// ChromePhp::log($comments);
$sql="select * from comments ,users where comments.aid = '$aid' and comments.uid = users.id ORDER BY addtime ASC LIMIT $offset, $pagesize";
$query=mysql_query($sql);
include("templates/view.php");
}
if ($_SERVER['REQUEST_METHOD'] == 'POST')
{
//使用會話內存儲的變量值之前必須先開啓會話
session_start();
// Chromephp::log($_SESSION['uid']);
// Chromephp::log($_SESSION['name']);
//如果會話沒有被設置,查看是否設置了cookie
if(!isset($_SESSION['uid']))
{
if(isset($_COOKIE['uid'])&&isset($_COOKIE['name']))
{
//用cookie給session賦值
$_SESSION['uid']=$_COOKIE['uid'];
$_SESSION['name']=$_COOKIE['name'];
}
else
{
header("Location: login.php");
exit();
}
}
$uid=$_SESSION['uid'];
//得到被回覆者的名字
$aid=$_GET['a'];
$touid=$_GET['touid'];
$query=mysql_query("select name from users where id='$touid'");
$toname=mysql_fetch_array($query);
//獲取文章
$aid=$_GET['a'];
$sql="select * from articles where id = $aid";
$query=mysql_query($sql);
$article=mysql_fetch_assoc($query);
//數據庫插入評論
$time=time();
$comment=format($_POST['comment']);
$sql="insert into comments (uid, touid, aid, addtime, content) values('$uid', '$touid', '$aid', '$time', '$comment')";
mysql_query($sql);
//更新編輯時間
mysql_query("update articles set edittime='$time' where id = '$aid'");
// ChromePhp::log($sql);
//獲取評論
//分頁代碼
//計算留言總數
$count_result = mysql_query("SELECT count(*) as count FROM comments");
$count_array = mysql_fetch_array($count_result);
//計算總的頁數
$pagenum=ceil($count_array['count']/$pagesize);
//確定當前頁數 $p 參數
$p = $_GET['p']?$_GET['p']:1;
//數據指針
$offset = ($p-1)*$pagesize;
$sql="select * from comments ,users where comments.aid = '$aid' and comments.uid = users.id ORDER BY addtime ASC LIMIT $offset, $pagesize";
$query=mysql_query($sql);
include("templates/view.php");
// ChromePhp::log($pagenum);
// ChromePhp::log($comments);
}
?>