树状BBS设计参考

编辑：admin 日间：2006-09-14 00:00

简单 BBS 系统需 MySQL。
以下是BBS的表结构，用以下的语句就可以建立：

        CREATE TABLE bbsMessage
        (
            ID INT NOT NULL AUTO_INCREMENT,
            Title VARCHAR(64),
            Poster VARCHAR(64),
            Created DATETIME,
            Parent INT,
            Body BLOB,
            PRIMARY KEY(ID)
        );

<HTML>
<HEAD>
<TITLE>This is my BBS</TITLE>
</HEAD>
<BODY BGCOLOR="#FFFFFF">
<?
     /******************************************************
     BBS v1.0
     编码： PHP 3
     作者： Leon Atkinson < leon.atkinson@clearink.com >

     简单 BBS 系统需 MySQL。
     以下是BBS的表结构，用以下的语句就可以建立：

*******************************************************/

printf( "<H1>Leon's BBS</H1>\n");

     /* 设置数据库 */
    mysql_pconnect( "www.yoursever.com", "httpd");
    $Database = "yourdb";

     /****************************************************************
     一个吐出派生信息的递归函数
    ****************************************************************/
    function showMessages($parentID)
    {
        global $Database;

$dateToUse = Date( "U");

echo "<UL>\n";

         /* 显示所有的类别 */
        $Query = "SELECT * FROM bbsMessage ";
        $Query = $Query . "WHERE Parent=$parentID ";
        $Query = $Query . "ORDER BY Created ";

        $result = mysql($Database,$Query);
        $numRows = mysql_NumRows($result);
        $RowCount = 0;
        while($RowCount < $numRows)
        {
            $messageID = mysql_result($result,$RowCount, "ID");
            $messageTitle = mysql_result($result,$RowCount, "Title");
            $messageCreated = mysql_result($result,$RowCount, "Created");
            $messageParent = mysql_result($result,$RowCount, "Parent");

             /*显示一行是什么类别的信息 */
            printf( "<LI>($messageCreated) <A HREF=\"bbs.htma?messageID=$messageID\">$messageTitle</A><BR>\n");

             /* 调用 getWingContents 以得到它的分支 */
            showMessages($messageID);

$RowCount++;
}

echo "</UL>\n";
}

     /****************************************************************
     输出一个提交新信息的表单，并在其中预置一个父ID
    ****************************************************************/
    function postForm($parentID, $useTitle)
    {
        printf( "<FORM ACTION=\"bbs.htma\" METHOD=\"post\">\n");
        printf( "<INPUT TYPE=\"hidden\" NAME=\"inputParent\" VALUE=\"$parentID\">");
        printf( "<INPUT TYPE=\"hidden\" NAME=\"ACTION\" VALUE=\"POST\">");
        printf( "<TABLE BORDER=\"1\" CELLSPACING=\"0\" CELLPADDING=\"5\" WIDTH=\"400\">\n");
        printf( "<TR><TD WIDTH=\"100\"><B>Title</B></TD>");
        printf( "<TD WIDTH=\"300\"><INPUT TYPE=\"text\" NAME=\"inputTitle\" SIZE=\"35\" MAXLENGTH\"64\" VALUE=\"$useTitle\"></TD></TR>\n");
        printf( "<TR><TD WIDTH=\"100\"><B>Poster</B></TD>");
        printf( "<TD WIDTH=\"300\"><INPUT TYPE=\"text\" NAME=\"inputPoster\" SIZE=\"35\" MAXLENGTH\"64\"></TD></TR>\n");
        printf( "<TR><TD COLSPAN=\"2\" WIDTH=\"400\">");
        printf( "<TEXTAREA NAME=\"inputBody\" COLS=\"45\" ROWS=\"5\"></TEXTAREA></TD></TR>\n");
        printf( "<TR><TD COLSPAN=\"2\" WIDTH=\"400\"><CENTER><INPUT TYPE=\"submit\" VALUE=\"Post\"></CENTER></TD></TR>\n");
        printf( "</TABLE>\n");
        printf( "</FORM>\n");

}

     /******************************************************
    执行动作
    ******************************************************/
    if($ACTION != "")
    {
        if($ACTION == "POST")
        {
            $inputTitle = ereg_replace( "'", "''", $inputTitle);
            $inputBody = ereg_replace( "'", "''", $inputBody);

            $Query = "INSERT INTO bbsMessage ";
            $Query .= "VALUES(0, '$inputTitle', ";
            $Query .= "'$inputPoster', ";
            $Query .= "now(), $inputParent, ";
            $Query .= "'$inputBody')";

            $result = mysql($Database,$Query);

}

     /******************************************************
     显示信息或者是显示信息列表
    ******************************************************/
    if($messageID > 0)
    {
        $Query = "SELECT * FROM bbsMessage ";
        $Query = $Query . "WHERE ID=$messageID ";

        $result = mysql($Database,$Query);
        $numRows = mysql_NumRows($result);
        $RowCount = 0;
        if($RowCount < $numRows)
        {
            $messageID = mysql_result($result,$RowCount, "ID");
            $messageTitle = mysql_result($result,$RowCount, "Title");
            $messagePoster = mysql_result($result,$RowCount, "Poster");
            $messageCreated = mysql_result($result,$RowCount, "Created");
            $messageParent = mysql_result($result,$RowCount, "Parent");
            $messageBody = mysql_result($result,$RowCount, "Body");

            printf( "<TABLE BORDER=\"1\" CELLSPACING=\"0\" CELLPADDING=\"5\" WIDTH=\"400\">\n");
            printf( "<TR><TD WIDTH=\"100\"><B>Title</B></TD><TD WIDTH=\"300\">$messageTitle</TD></TR>\n");
            printf( "<TR><TD WIDTH=\"100\"><B>Poster</B></TD><TD WIDTH=\"300\">$messagePoster</TD></TR>\n");
            printf( "<TR><TD WIDTH=\"100\"><B>Posted</B></TD><TD WIDTH=\"300\">$messageCreated</TD></TR>\n");
            printf( "<TR><TD COLSPAN=\"2\" WIDTH=\"400\">$messageBody</TD></TR>\n");
            printf( "</TABLE>\n");

postForm($messageID, "RE: $messageTitle");

}

echo "<A HREF=\"bbs.htma\">List of Messages</A><BR>";

    }
    else
    {
        printf( "<H2>List of Messages</H2>\n");

/* 调用递归函数*/
showMessages(0);

postForm(0, "");

}

</BODY>
</HTML>

树状BBS设计参考

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