php的XML文件解释类应用实例,phpxml类应用实例
本文实例讲述了php的XML文件解释类及其用法,是非常实用的技巧。分享给大家供大家参考。具体如下:
XMLParser.class.php类文件如下:
<?php /** XML 文件分析类 * Date: 2013-02-01 * Author: fdipzone * Ver: 1.0 * * func: * loadXmlFile($xmlfile) 读入xml文件输出Array * loadXmlString($xmlstring) 读入xmlstring 输出Array */ class XMLParser{ /** 读取xml文件 * @param String $xmlfile * @return Array */ public function loadXmlFile($xmlfile){ // get xmlfile content $xmlstring = file_exists($xmlfile)? file_get_contents($xmlfile) : ''; // parser xml list($flag, $data) = $this->parser($xmlstring); return $this->response($flag, $data); } /** 读取xmlstring * @param String $xmlstring * @return Array */ public function loadXmlString($xmlstring){ // parser xml list($flag, $data) = $this->parser($xmlstring); return $this->response($flag, $data); } /** 解释xml内容 * @param String $xmlstring * @return Array */ private function parser($xmlstring){ $flag = false; $data = array(); // check xml format if($this->checkXmlFormat($xmlstring)){ $flag = true; // xml to object $data = simpleXML_load_string($xmlstring, 'SimpleXMLElement', LIBXML_NOCDATA); // object to array $this->objectToArray($data); } return array($flag, $data); } /** 检查xml格式是否正确 * @param String $xmlstring * @return boolean */ private function checkXmlFormat($xmlstring){ if($xmlstring==''){ return false; } $xml_parser_obj = xml_parser_create(); if(xml_parse_into_struct($xml_parser_obj, $xmlstring, $vals, $indexs)===1){ // 1:success 0:fail return true; }else{ return false; } } /** object 转 Array * @param object $object * @return Array */ private function objectToArray(&$object){ $object = (array)$object; foreach($object as $key => $value){ if($value==''){ $object[$key] = ""; }else{ if(is_object($value) || is_array($value)){ $this->objectToArray($value); $object[$key] = $value; } } } } /** 输出返回 * @param boolean $flag true:false * @param Array $data 转换后的数据 * @return Array */ private function response($flag=false, $data=array()){ return array($flag, $data); } } ?>
Demo示例程序如下:
<?php require "XMLParser.class.php"; $xmlfile = 'file.xml'; $xmlstring = '<?xml version="1.0" encoding="utf-8"?> <xmlroot> <status>1000</status> <info></info> <result><id>100</id> <name>fdipzone</name> <gender>1</gender> <age>28</age> </result> </xmlroot>'; echo '<pre class="brush:php;toolbar:false">'; $xml_parser = new XMLParser(); echo "response xmlfile\r\n"; list($flag, $xmldata) = $xml_parser->loadXmlFile($xmlfile); if($flag){ print_r($xmldata); } echo "response xmlstring\r\n"; list($flag, $xmldata) = $xml_parser->loadXmlString($xmlstring); if($flag){ print_r($xmldata); } echo ''; ?>
关于PHP的XML预定义常量可参考官方文档:
http://www.php.net/manual/en/libxml.constants.php
希望本文所述对大家PHP程序设计的学习有所帮助。
#使用dom生成xml,注意生成的xml中会没有空格。
$dom=new DOMDocument('1.0','utf-8');
$path="test.xml"; // $path 为xml文件的存储路径。
$module=$dom->createElement('newmodule');// root node
$dom->appendChild($module);
$year=$dom->createElement('year'); // add attribute node
$name=$dom->createAttribute('name');
$name->nodeValue="最新动态";
$year->setAttributeNode($name);
$module->appendChild($year);
$news=$dom->createElement('news');
$year->appendChild($news);
$date=$dom->createElement('date');
$date_value=$dom->createTextNode('01-24');
$date->appendChild($date_value);
$news->appendChild($date);
$title=$dom->createElement('title');
$title_value=$dom->createTextNode('');
$title->appendChild($title_value);
$news->appendChild($title);
$info=$dom->createElement('info');
$info_value=$dom->createTextNode(' ]]>');
$info->appendChild($info_value);
$news->appendChild($info);
echo $dom->saveXML();
$dom->save($path);
?>
dim xml,objNode,objAtr,nCntChd,nCntAtr
Set xml=Server.CreateObject("Microsoft.XMLDOM")
xml.Async=False
xml.Load(Server.MapPath("test.xml"))
Set objNode=xml.documentElement
nCntChd=objNode.ChildNodes.length-1
'这个可以定义asp读取xml文件的那一个值,通过传递这个值来确定读取的数据
for i=0 to nCntChd
set objAtr=objNode.ChildNodes.item(i)
nCntAtr=objAtr.Attributes.length-1
'历遍一条记录里面的所有的记录项,记录是从0开始的
for j=0 to nCntAtr
response.write objAtr.Attributes.item(j).Text&"
"
next
response.write "
"
next
Set objAtr=Nothing
Set objNode=Nothing
Set xml=Nothing
%>
参考资料:homepage.yesky.com/369/3074869.shtml

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

方法:1、用“str_replace(" ","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\ \;||\xc2\xa0)/","其他字符",$str)”语句。

php判断有没有小数点的方法:1、使用“strpos(数字字符串,'.')”语法,如果返回小数点在字符串中第一次出现的位置,则有小数点;2、使用“strrpos(数字字符串,'.')”语句,如果返回小数点在字符串中最后一次出现的位置,则有。

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。

在PHP中,可以利用implode()函数的第一个参数来设置没有分隔符,该函数的第一个参数用于规定数组元素之间放置的内容,默认是空字符串,也可将第一个参数设置为空,语法为“implode(数组)”或者“implode("",数组)”。


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