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首页 / 网页编程 / PHP / php操作XML、读取数据和写入数据的实现代码

xml文件
<?xml version="1.0" encoding="utf-8"?> <vip> <id>23</id> <username>开心的路飞</username> <sex>男</sex> <face>face/43.jpg</face> <email>123@qq.com</email> <qq>1212121212</qq> </vip>

php解析XML获取标签中的值
/* * _get_xml 获取的XML文件* @access public 表示函数对外公开* @param $_xmlfile xml文件* $_html 从XML中取出的数据数组* */function _get_xml($_xmlfile){$_html = array();if(file_exists($_xmlfile)){$_xml = file_get_contents($_xmlfile);preg_match_all("/<vip>(.*)</vip>/", $_xml,$_dom);foreach($_dom[1] as $_value){preg_match_all("/<id>(.*)</id>/", $_value,$_id);preg_match_all("/<username>(.*)</username>/", $_value,$_username);preg_match_all("/<sex>(.*)</sex>/", $_value,$_sex);preg_match_all("/<face>(.*)</face>/", $_value,$_face);preg_match_all("/<email>(.*)</email>/", $_value,$_email);preg_match_all("/<qq>(.*)</qq>/", $_value,$_qq);$_html["id"] = $_id[1][0];$_html["username"] = $_username[1][0];$_html["sex"] = $_sex[1][0];$_html["face"] = $_face[1][0];$_html["email"] = $_email[1][0];$_html["qq"] = $_qq[1][0];}}else{_alert_back("文件不存在");}return $_html;}
php向XML文件中写入数据
/* * _set_xml将信息写入XML文件* @access public 表示函数对外公开* @param $_xmlfile xml文件* @param $_clean 要写入的信息的数组* */function _set_xml($_xmlfile,$_clean){$_fp = @fopen("newuser.xml","w");if(!$_fp){exit("系统错误,文件不存在!");}flock($_fp,LOCK_EX);$_string = "<?xml version="1.0" encoding="utf-8"?>
	";fwrite($_fp, $_string,strlen($_string));$_string = "<vip>
	";fwrite($_fp, $_string,strlen($_string));$_string = "	<id>{$_clean["id"]}</id>
	";fwrite($_fp, $_string,strlen($_string));$_string = "	<username>{$_clean["username"]}</username>
	";fwrite($_fp, $_string,strlen($_string));$_string = "	<sex>{$_clean["sex"]}</sex>
	";fwrite($_fp, $_string,strlen($_string));$_string = "	<face>{$_clean["face"]}</face>
	";fwrite($_fp, $_string,strlen($_string));$_string = "	<email>{$_clean["email"]}</email>
	";fwrite($_fp, $_string,strlen($_string));$_string = "	<qq>{$_clean["url"]}</qq>
	";fwrite($_fp, $_string,strlen($_string));$_string = "</vip>";fwrite($_fp, $_string,strlen($_string));flock($_fp,LOCK_UN);fclose($_fp);}