回复主题的实现文件reply.php，它的代码如下：
<?
if($submit == '提交回复')
{
if($content != "")
{
if($username != "" && $password != "")
{
if(checkuser($username, $password) == true)
{
session_register("username");
reply($theme, $username, $face, $oicq, $email, $homepage, $content, $REMOTE_ADDR, $titleid, $noteid);
$notes = get_notes($titleid);
echo "<meta http-equiv='Refresh' content='0; url=forum.php?action=read&id=$titleid&title=$title¬es=$notes'>";
exit;
}
else
{
$url="forum.php?action=reply&theme=$theme&email=$email&homepage=$homepage&oicq=$oicq&content=$content";
include("loginerr.php");
}
}
else if(!session_is_registered("username"))
{
echo "<h3><font color=#FF0000>您还没有登录，必须输入名字和密码</font></h3>";
}
else
{
reply($theme, $username, $face, $oicq, $email, $homepage, $content, $REMOTE_ADDR, $titleid, $noteid);
$notes = get_notes($titleid);
echo "<meta http-equiv='Refresh' content='0; url=forum.php?action=read&id=$titleid&title=$title¬es=$notes'>";
exit;
}
}
else
{
echo "<h3><font color=#FF0000>您的输入不完整，回复内容是必须填的</font></h3>";
}
}
echo "<body bgcolor='#DDFFDD'>";
echo "<div style='position:absolute; left:5%' ><div align='center'><h2><font color='#00AA00'>";
echo "回复主题";
echo "</font></h2></div>";
echo "<form name='input' method='post'";
if(session_is_registered("username"))
{
echo " action='forum.php?action=reply&username=$username&theme=$theme&email=$email&homepage=$homepage&oicq=$oicq&content=$content&titleid=$titleid¬eid=$noteid&title=$title'>";
echo "名字：".$username."<br><br>";
}
else
{
echo ">名字：";
echo "<input type='text' name='username' maxlength='16' size='15'> ";
echo "密码：";
echo "<input type='password' name='password' maxlength='16' size='15'>(必填)<br><br>";
}
echo "OICQ：<input type='text' name='oicq' size='8' maxlength=10 value=$oicq> ";
echo "E-mail地址：<input type='text' name='email' size='20' value=$email>";
echo " 个人主页：<input type='text' name='homepage' size='22' value=$homepage>(可不填)<br><br>";
$theme = "RE:$theme";
echo "回复标题：<input type='text' name='theme' size='77' maxlength=MAX_TITLE_WIDTH value=$theme>(可不填)<br><br>";
for($i = 1; $i <= 66; $i ++)
{
$str = strval($i);
if($i < 10)
$str = "0".$str;
$str = "img/face".$str.".png";
echo "<img src=$str width=20>";
if($i != 1)
echo "<input type='radio' name='face' value=$i>";
else
echo "<input type='radio' name='face' value=$i checked>";
if($i%17 == 0)
echo "<br>";
}
echo "<textarea name='content' cols=95 rows=5>$content</textarea>";
echo "<div align=center><br><input type='submit' name='submit' value='提交回复'> ";
echo "<input type='reset' name='reset' value='重新填写'></div><br>";
?>
可以发现这部分和新建主题是很相似的，不同之处是标题是可以不输入的，而用reply()函数代替addnew()函数，在funcdef.php文件中，reply()函数定义如下：
<?
//将回复帖子写入文件
function reply($title, $maker, $face, $oicq, $email, $homepage, $content, $ip, $titleid, $noteid)
{
$newid = get_noteid($titleid, $noteid);
//改写?主题文件
$fp = fopen("rec/".$titleid, "a+");
fwrite($fp, "$newidt");
fwrite($fp, "$titlet");
fwrite($fp, "$facet");
fwrite($fp, "$makert");
$timestr = date("Y.m.d,H:i");
fwrite($fp, "$timestrt");
fwrite($fp, "$ipt");
fwrite($fp, "$oicqt");
fwrite($fp, "$emailt");
fwrite($fp, "$homepaget");
$content = ascii2html($content);
fwrite($fp, "$contentn");
fclose($fp);
//改写themelist文件，更新帖子数目
$fp = fopen("rec/themelist", "r");
$newfp = fopen("rec/themelist.bak", "w+");
$rows = fgets($fp, MAX_READ_BYTES);
fwrite($newfp, $rows);
$rows = fgets($fp, MAX_READ_BYTES);
fwrite($newfp, strval(intval($rows) + 1));
fwrite($newfp, "n");
while(!feof($fp))
{
$rows = fgets($fp, MAX_READ_BYTES);
$recid = intval(strtok($rows, "t"));
if($recid != $titleid)
{
fwrite($newfp, $rows);
}
else //如果是要修改的行
{
$rectitle = strtok("t");
$recmaker = strtok("t");
$rectime = strtok("t");
$newnum = intval(strtok("t")) + 1;
fwrite($newfp, $recid."t");
fwrite($newfp, $rectitle."t");
fwrite($newfp, $recmaker."t");
fwrite($newfp, $rectime."t");
fwrite($newfp, "$newnumn");
}
}
fclose($newfp);
fclose($fp);
copy("rec/themelist.bak", "rec/themelist");
unlink("rec/themelist.bak");
}
?>
在reply.php代码中有一个get_notes($titleid)函数被调用了，这个函数是根据标题ID来获得该标题下帖子总数目，其定义是：
<?
//获取某主题的总帖子数目
function get_notes($titleid)
{
if(!file_exists("rec/themelist"))
return 0;
$fp = fopen("rec/themelist", "r");
fgets($fp, MAX_READ_BYTES);
fgets($fp, MAX_READ_BYTES);
while(!feof($fp))
{
$rows = fgets($fp, MAX_READ_BYTES);
$recid = intval(strtok($rows, "t"));
if($recid == $titleid)
{
$notes = intval(substr($rows, strrpos($rows, "t")));
break;
}
}
fclose($fp);
return $notes;
}
?>
reply.php中还用到一个get_noteid()函数，是用来获得新帖子ID的，其定义如下：
<?
//获取新帖子应该具有的ID
function get_noteid($titleid, $noteid)
{
$fp = fopen("rec/$titleid", "r");
for($i = 1; ; $i ++)
{
if($i < 10)
$curid = $noteid."0".strval($i);
else
$curid = $noteid.strval($i);
$found = 0;
fseek($fp, 0);
while(!feof($fp))
{
$recid = strtok(fgets($fp, MAX_READ_BYTES), "t");
if($curid == $recid)
$found = 1;
}
if(!$found)
break;
}
fclose($fp);
return $curid;
}
?>
下次将介绍论坛的主题搜索部分。(未完待续)
|
|