Php+Xml留言本小程序

这个小例子主要是对写了对Php对Xml文件的操作，和节点的遍历。

config.php文件

<?php
/*************************************************
/*
/*Author:Lee
/*Date  :2009-5-15
/*
*************************************************/
$CONFIGS = array(
    'title'=>"留言在线",
    'version'=>"Copyright © 2009 β1.0"
);
?>

index.php文件

<?php
define("ROOT",$_SERVER['DOCUMENT_ROOT']);
/*************************************************
/*
/*Author:Lee
/*Date  :2009-5-15
/*
*************************************************/
require(ROOT."/m/config.php");
$post = $_POST;
$data = ROOT."/m/data/message.xml";
if (empty($post))
{
    $info = GetRecordFromXml($data);
}
else
{
    $content = GetValues($post);
    WriteToXml($data,$content);
}

function GetRecordFromXml($fname)
{
    $info = array();
    $xml = new DOMDocument();
    $xml->load($fname);
    $i = 0;
    foreach($xml->getElementsByTagName('record') as $list)
    {
        $info[$i]['name'] = $list->childNodes->item(0)->childNodes->item(0)->data;
        $info[$i]['content'] = $list->childNodes->item(1)->childNodes->item(0)->data;
        $info[$i]['stime'] = $list->childNodes->item(2)->childNodes->item(0)->data;
        ++$i;
    }
    return $info;
}
function GetValues($values)
{
    date_default_timezone_set('Asia/Shanghai');
    $name = $values['name'];
    $content = $values['content'];
    $_name = "<name>";
    $name_ = "</name>";
    $_content = "<content>";
    $content_ = "</content>";
    $stiem = "<stime>".date("Y-m-d H:i:s")."</stime></record>";
    return '<record>'.$_name.$name.$name_.$_content.$content.$content_.$stiem.'</message>';
}
function WriteToXml($fname,$content)
{
    $fp = fopen($fname,'r+');
    fseek($fp,(0-strlen('</message>')),SEEK_END);
    fwrite($fp,$content);
    fclose($fp);
}
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
  <TITLE><?php echo $CONFIGS['title'];?></TITLE>
  <META NAME="Author" CONTENT="Libch">
  <META NAME="Keywords" CONTENT="">
  <META NAME="Description" CONTENT="">
  <META http-equiv="Content-Type" content="text/html; charset=utf-8">
</HEAD>
    <SCRIPT LANGUAGE="JavaScript">
    
    </SCRIPT>
    <style type="text/css">
        .style4{
            width: 800px;
            height: auto;
            margin: 0px auto;
            margin-bottom:20px;
            border:1px solid #CCEFF5;
            background-color: #FAFCFD
        }
    </style>
<BODY>
  <FORM METHOD=POST ACTION="index.php" name="formMain">
    <?php
    if(empty($info))
    {
    ?>
    <div class="style4" style="text-align:center;">还没有留言内容！</div>
    <?php
    } else {
        $size = sizeof($info);
    ?>
    <div class="style4">
        <?php
        for($i=0;$i<$size;++$i){
        ?>
        <TABLE>
        <TR>
            <TD>昵称：</TD>
            <TD><?php echo $info[$i]['name'];?></TD>
        </TR>
        <TR>
            <TD>内容：</TD>
            <TD><?php echo $info[$i]['content'];?></TD>
        </TR>
        <TR>
            <TD>时间：</TD>
            <TD><?php echo $info[$i]['stime'];?></TD>
        </TR>
        </TABLE>
        <?php
        }
        ?>
    </div>
    <?php
    }
    ?>
    <div class="style4">
    <TABLE>
        <TR>
            <TD>昵称：</TD>
            <TD><INPUT TYPE="text" NAME="name" id="name" maxlength="10" size="20"><font color="red">*最多10个字符</font></TD>
        </TR>
        <TR>
            <TD>内容：</TD>
            <TD><TEXTAREA NAME="content" id="content" ROWS="3" COLS="50" maxlength="150"></TEXTAREA></TD>
        </TR>
        <TR>
            <TD> </TD>
            <TD><INPUT TYPE="button" value="提交" onclick="return checkForm();"> <INPUT TYPE="reset"></TD>
        </TR>
    </TABLE>
    </div>
    <div class="style4" style="text-align:center;"><?php echo $CONFIGS['version'];?></div>
  </FORM>
</BODY>
</HTML>

位于data目录下的Xml文件结构

<?xml version="1.0" encoding="utf-8"?>
<message></message>