Home > php教程 > php手册 > php xml留言板 xml存储数据的简单例子

php xml留言板 xml存储数据的简单例子

WBOY
Release: 2016-06-13 12:21:52
Original
899 people have browsed it

类文件 : _class.xmldb.inc.php

复制代码 代码如下:


class xmldb extends DOMDocument{
    var $xmldb;
    public function __construct($xmldbname){
        $this->xmldb=$xmldbname;
        if(!file_exists($this->xmldb)){
            $initxmldb = "";
            $this->loadXML($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             $rowslist[$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 ="首页 ";
                $mess .="上一页 ";
            }else{
                $mess ="首页 ";
                $mess .="上一页 ";
            }
            if($page > 9){
                $startpage = $page - 9;
            }
            $stoppage = $startpage + 9 >= $pageall ? $pageall : $startpage + 9;
            for($i= $startpage; $i            {
                if($i                    $mess .= "".$i." ";
                else
                    $mess .= "".$i." ";
            }
            if ($page                 $mess .=" 下一页";
                $mess .=" 尾页";
            }else{
                $mess .=" 下一页";
                $mess .=" 尾页";
            }
        return $mess;
    }
}
?>


调用文件 : index.php

复制代码 代码如下:


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);
?>




New Document
    


    

            if(!empty($rowslist))
        {
            foreach($rowslist as $key => $value)
            {
                echo "
  • ".$value["Nickname"]." (".date("Y-m-d H:i",$value["Timer"]).")
  • ";
                    echo "
  • ".$value["Content"]."

";
            }
        }
    ?>
        
=$xmldb -> splitpage($pagecount,$page,'','page',$pagesize)?>

    

    

        

            昵称:

            内容:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Recommendations
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template