Simple Example of storing data in php xml message board xml

Class file: _ class. xmldb. inc. php
Copy codeThe Code is as follows:
<? Php
Class xmldb extends DOMDocument {
Var $ xmldb;
Public function _ construct ($ xmldbname ){
$ This-> xmldb = $ xmldbname;
If (! File_exists ($ this-> xmldb )){
$ Initxmldb = "<? Xml version = \ "1.0 \" encoding = \ "UTF-8 \"?> <Message> </Message> ";
$ This-> loadXML ($ initxmldb );
$ This-> save ($ this-> xmldb );
} Else {
$ This-> load ($ this-> xmldb );
}

}
Public function insert_message ($ nickname, $ message ){

$ Messagedom = $ this-> getElementsByTagName ("Message ");
$ Subnode = $ this-> createElement ("Rows ");
$ Nicknamenode = $ this-> createElement ("Nickname ");
$ Nicknamenode-> appendChild ($ this-> createTextNode ($ nickname ));
$ Subnode-> appendChild ($ nicknamenode );
$ Contentnode = $ this-> createElement ("Content ");
$ Contentnode-> appendChild ($ this-> createTextNode ($ message ));
$ Subnode-> appendChild ($ contentnode );
$ Timernode = $ this-> createElement ("Timer ");
$ Timernode-> appendChild ($ this-> createTextNode (time ()));
$ Subnode-> appendChild ($ timernode );
$ Messagedom-> item (0)-> appendChild ($ subnode );
$ This-> saveXML ();
$ This-> save ($ this-> xmldb );
}
Function get_node_length ($ nodename ){

$ Odom = $ this-> getElementsByTagName ($ nodename );
Return $ odom-> length;
}
Public function get_message_list ($ start, $ rowscount, $ pagesize ){
$ End = $ rowscount> $ pagesize? $ Start + $ pagesize: $ rowscount;

$ K = 0;
For ($ I = $ start; $ I <$ end; $ I ++ ){
$ Rowslist [$ k] ["Nickname"] = $ this-> getElementsByTagName ("Nickname")-> item ($ I)-> nodeValue;
$ Rowslist [$ k] ["Content"] = $ this-> getElementsByTagName ("Content")-> item ($ I)-> nodeValue;
$ Rowslist [$ k] ["Timer"] = $ this-> getElementsByTagName ("Timer")-> item ($ I)-> nodeValue;
$ K ++;
}
Return $ rowslist;
}
Public static function splitpage ($ pageall, $ page = 1, $ urled = null, $ strpage = "page", $ pageaverage = 10 ){
$ Pageaverage-= 1;
$ Page = intval ($ page> = 1? $ Page: 1 );
$ Page = $ page> $ pageall? $ Pageall: $ page;
$ Startpage = $ page-$ pageaverage> 0? $ Page-ceil ($ pageaverage/2): 1;
$ Startpage = ($ page + ceil ($ pageaverage/2)> $ pageall )? $ Pageall-$ pageaverage: $ startpage;

$ Startpage = $ startpage> 0? $ Startpage: 1;
$ Stoppage = $ startpage + $ pageaverage> $ pageall? $ Pageall: $ startpage + $ pageaverage;
If (empty ($ urlfile) {$ urlfile = $ _ SERVER ["PHP_SELF"];}
If (! Strrpos ($ urlfile ,'? ') $ Urled. = '? ';
Foreach ($ _ GET as $ k => $ v)
{
$ Urled = ($ k <> $ strpage )? $ Urled. $ k. '='. urlencode ($ v). '&': $ urled;
}
If ($ page> 1 ){
$ Mess = "<a href = "". $ urled. $ strpage. "= 1" href = "". $ urled. $ strpage. "= 1"> homepage </a> ";
$ Mess. = "<a href = "". $ urled. $ strpage. "= ". ($ page-1 ). "" href = "". $ urled. $ strpage. "= ". ($ page-1 ). ""> previous page </a> ";
} Else {
$ Mess = "Homepage ";
$ Mess. = "Previous Page ";
}
If ($ page> 9 ){
$ Startpage = $ page-9;
}
$ Stoppage = $ startpage + 9 >=$ pageall? $ Pageall: $ startpage + 9;
For ($ I = $ startpage; $ I <= $ stoppage; $ I ++)
{
If ($ I <= $ pageall &&! ($ Page = $ I ))
$ Mess. = "<a href = "". $ urled. $ strpage. "= ". $ I. "" href = "". $ urled. $ strpage. "= ". $ I. ""> ". $ I. "</a> ";
Else
$ Mess. = "". $ I ."";
}
If ($ page <$ pageall ){
$ Mess. = "<a href = "". $ urled. $ strpage. "= ". ($ page + 1 ). "" href = "". $ urled. $ strpage. "= ". ($ page + 1 ). ""> next page </a> ";
$ Mess. = "<a href = "". $ urled. $ strpage. "= ". $ pageall. "" href = "". $ urled. $ strpage. "= ". $ pageall. ""> last page </a> ";
} Else {
$ Mess. = "next page ";
$ Mess. = "last page ";
}
Return $ mess;
}
}
?>

Call file: index. php
Copy codeThe Code is as follows:
<? Php
Require ("_ class. xmldb. inc. php ");
$ Xmldb = new xmldb ("./my_xmldb.xml ");
If (isset ($ _ POST ["btnform1"]) {
$ Xmldb-> insert_message ($ _ POST ["nickname"], $ _ POST ["content"]);
}
$ Pagesize = 3;
$ Page =! Empty ($ _ GET ['page'])? Intval ($ _ GET ['page']): 1;
$ Rowscount = $ xmldb-> get_node_length ("Rows ");
$ Pagecount = ceil ($ rowscount/$ pagesize );
$ Start = ($ page-1) * $ pagesize> $ rowscount? $ Rowscount: ($ page-1) * $ pagesize;
$ Rowslist = $ xmldb-> get_message_list ($ start, $ rowscount, $ pagesize );
?>
<! Doctype html public "-// W3C // dtd html 4.0 Transitional // EN">
<HTML>
<HEAD>
<Meta http-equiv = "content-type" content = "text/html; charset = UTF-8">
<TITLE> New Document </TITLE>
<Style type = 'text/css '> <! --
# Messagelist ul li {float: left; list-style-type: none ;}

--> </Style> <style type = 'text/css 'bogus = "1"> # messagelist ul li {float: left; list-style-type: none ;}
</Style>
</HEAD>
<BODY>
<Div id = "messagelist">
<? Php
If (! Empty ($ rowslist ))
{
Foreach ($ rowslist as $ key => $ value)
{
Echo "<ul> <li> ". $ value ["Nickname"]. "<span> (". date ("Y-m-d H: I", $ value ["Timer"]). ") </span> </li> ";
Echo "<li>". $ value ["Content"]. "</li> </ul> <br> ";
}
}
?>
<Div> <? = $ Xmldb-> splitpage ($ pagecount, $ page, '', 'page', $ pagesize)?> </Div>
</Div>
<Div>
<Form action = "" method = "post" name = "form1">
Nickname: <input type = "text" name = "nickname"> <br>
Content: <textarea name = "content">

Simple message board for php to operate xml, with pagination, for reference only