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A concise multi-level forum

Source: Internet
Author: User
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In this forum, less than 200 lines of code are used, and the execution speed is quite fast. Run the example in: http://www.hnpts.ha.cn/forum
MYSQL database: yxforum
+ ------- + -------------- + ------ + ----- + --------- + ---------------- +
| Field | Type | Null | Key | Default | Extra |
+ ------- + -------------- + ------ + ----- + --------- + ---------------- +
| Id | int (11) | PRI | 0 | auto_increment |
| Dt | datetime | YES | NULL |
| Tp | varchar (255) | YES | NULL |
| Ct | text | YES | NULL |
| Fl | int (11) | YES | NULL |
| Ip | varchar (20) | YES | NULL |
| Un | varchar (50) | YES | NULL |
| Em | varchar (60) | YES | NULL |
| Num | int (11) | YES | NULL |
+ ------- + -------------- + ------ + ----- + --------- + ---------------- +

Index. php:

<Html>
<Head>
<Style type = "text/css">

<! --
. Unnamed1 {font-size: 9pt; font-family: ""}
. Unnamed1 A {COLOR: #000088; FONT-SIZE: 9pt; TEXT-DECORATION: none; TEXT-TRANSFORM: none; font-family: ""}
. Unnamed1 A: hover {COLOR: #880000; FONT-SIZE: 9pt; TEXT-DECORATION: underline overline; font-family: "_ GB2312 "}
. Unnamed2 {font-size: 12px; color: # 9933FF}

-->

</Style>
</Head>
<Body bgcolor = "# FFFFFF" text = "#000000" link = "#000066" vlink = "# 0000CC" alink = "#000099">
<? $ M = mysql_connect ("localhost", "XXX", "XXX ");
Mysql_select_db ("××××", $ m );
?>

<? If ($ fl = "") $ fl = 1;
$ Hf_fl = $ fl;
$ Q = "select * from yxforum where id =". $ fl;
$ Mr = mysql_query ($ q, $ m );
$ Ra = mysql_fetch_row ($ mr );
?>
<P align = center> <B> <? Print ($ ra [2]);?> </B> <br>
<? If ($ fl! = 1 ){
?>
<Small> <? Printf ("(<a href = mailto: % s> % s </a>)", $ ra [7], $ ra [6]);?>
</Small> </p>
<? $ Alltt = $ ra [2];
$ Lastid = $ ra [4];
Print ("<center> <table width = 90% border = 1> <tr> <td bgcolor = # dddddd class = unnamed1> ". $ ra [3]. "</tr> </table> </center> ");
Print ("<br> <small> subject: </small> ");
}

$ Q = "select * from yxforum where fl =". $ fl. "order by dt desc ";
If ($ p = "") $ p = 0;
$ Mr = mysql_query ($ q, $ m );
$ F = mysql_num_fields ($ mr );

$ Ra = mysql_fetch_row ($ mr );
$ I = 0; $ p1 = $ p * 15;/* skip the row corresponding to the specified page number */
While ($ I <$ p1)
{$ I ++;
$ Ra = mysql_fetch_row ($ mr );
If (! $ Ra) break ;}


?>
<Center>
<Table border = 0 width = 732 class = "unnamed1">
<Tr align = "center" valign = "top" bgcolor = "# FFFFCC">
<Td width = "186"> latest response time
<Td width = "88"> publisher
<Td width = "414"> topic
<Td width = "44"> Response count
</Tr>
<?
$ X [0] = "ffffcc"; $ x [1] = "DEEFFF"; $ I = 1;
While ($ ra)/* display the current topic */
{$ Ys_c = $ I % 2;
Print ("<tr height = 12 bgcolor = #". $ x [$ ys_c]. "> <td align = center>". $ ra [1]);
Print ("<td align = center> <a href = mailto :". $ ra [7]. "> ". $ ra [6]. "</a> ");
Print ("<td> ");
Printf ("<a href = index. php? Fl = % s> % s </a> ", $ ra [0], $ ra [2]);
Print ("<td align = center>". $ ra [8]);
Print ("</tr> ");
$ Ra = mysql_fetch_row ($ mr );
$ I ++;
If ($ I> 15) break;
}

?>
</Table> </center>
<Form action = index. php method = get name = F0 onsubmit = "document. F0.p. value --; return true;">
<Span class = unnamed1>
<?
$ Alllines = mysql_affected_rows ($ m );
$ Pages = $ alllines/15;
If ($ pages-intval ($ pages )! = 0) $ pages = intval ($ pages) + 1;
Else $ pages = intval ($ pages );
Print ("Total". $ pages. "Page". ($ p + 1). "Page ");

If ($ p> 0) {printf ("<a href = index. php? Fl = % s> homepage </a> ", $ hf_fl );
Printf ("<a href = index. php? Fl = % s & p = % d> previous page </a> ", $ hf_fl, $ P-1 );}
If ($ ra) {printf ("<a href = index. php? Fl = % s & p = % d> next page </a> ", $ hf_fl, $ p + 1 );
Printf ("<a href = index. php? Fl = % s & p = % d> last page </a> ", $ hf_fl, $ pages-1 );}
?> Specify the <input type = text size = 2 name = p> page
</Span>
<Span class = unnamed1>
<? If ($ hf_fl! = 1) {printf ("<br> <a href = index. php? Fl = % s> upper level </a> ", $ lastid );
Print ("<a href = index. php> highest level </a> <br> ");}
?>
</Form> <center>
<Table width = 80% bgcolor = # eeeeff> <tr> <td class = unnamed1>
<? Print ($ fl = 1 )? "Add a new post:": "response:");?>
<Form action = "addnew. php" method = post name = "F1">
Name:
<Input type = "text" name = "nm" size = "15">
<Br>
Email:
<Input type = "text" name = "em" size = "45">
<Br>
Title (required ):
<Input type = "text" name = "tt" size = "45" <? If ($ fl! = 1) print ("value = reply:". $ alltt);?> >
<Input type = hidden name = "fl" value = "<? Print ($ hf_fl);?> ">
<Input type = hidden name = "p" value = "<? Print ($ p);?> ">
<Br>
Body (required): <br>

<Textarea name = "zw" cols = "50" rows = "10"> </textarea>
<Input type = "submit" name = "Submit" value = "submit">
</Form>
</Tr> </table> </center>
<Hr>
<Center> self-use design tool for Forum program version 0.25: PHP + MYSQL <br>
<A href = mailto: fhl@cgi.hnpts.ha.cn> ancient qingjian production </a> <br> <a href = http://www.fhlfox.dhs.org> Xiaoyao feihu Multimedia Workshop </a> 2000 </center>
</Span>
</Body>
</Html>



Addnew. php:

<? $ M = mysql_connect ("localhost", "XXX", "XXX ");
Mysql_select_db ("×××××", $ m );
$ Zw = ereg_replace ("<", "<", $ zw );
$ Zw = ereg_replace (">", ">", $ zw );
$ Zw = ereg_replace ("n", "<br>", $ zw );
$ Zw = ereg_replace ("", "", $ zw );
$ Tt = ereg_replace ("<", "<", $ tt );
$ Tt = ereg_replace (">", ">", $ tt );
If ($ nm = "") $ nm = "";
If ($ em = "") {$ nm. = "<-- is a newbie without MAIL"; $ em = "No ";}
$ Err = strlen ($ tt) * strlen ($ zw );
If ($ err = 0)
$ Msg = "<font color = red> don't be lazy! It is not too late to enter the form and submit it again. </Font> ";
Else {$ q = "insert into yxforum (dt, tp, ct, fl, ip, un, em, num) values"
. "(Now (),"". $ tt. "","". $ zw. "",". $ fl. ","". $ REMOTE_ADDR. "","". $ nm. "","". $ em. "", 0 )";
Mysql_query ($ q, $ m );

$ Q = "select num, fl from yxforum where id =". $ fl;
$ Fl_a = $ fl;
Do {$ mr = mysql_query ($ q, $ m );
$ Ra = mysql_fetch_row ($ mr );
$ Num = $ ra [0] + 1;
$ Q = "update yxforum set dt = now (), num =". $ num. "where id =". $ fl;
$ Fl = $ ra [1];
Mysql_query ($ q, $ m );
$ Q = "select num, fl from yxforum where id =". $ fl;
} While ($ fl> 0 );


$ Msg = "<font color = green> your comments have been submitted successfully! </Font> ";
}
?>
<Html>
<Head>
<Script language = "Javascript">
Function go ()
{Document. location = "index. php? Fl = <? Print ($ fl_a);?> & P = <? Print ($ p)?> ";
}
</Script>
<Body onload = "setTimeout ('go () ', 3000);">
<? Print ($ msg);?> <Br>
The system will automatically return after 3 seconds. If you cannot return a message or are in a hurry, please press <a href = index. php? Fl = <? Print ($ fl_a);?> & P = <? Print ($ p)?> Here </a>
</Body>

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

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