用PHP读取RSS feed的代码
而助易网的rss读取就是在这个程序的基础上稍做改造而成,主
要是输出了一个数组字符串以及解决编码问题。
php源代码及代码详细解释如下:
//RSS源地址列表数组
$rssfeed = array("http://www.jb51.net/feed",
"http://rss.sina.com.cn/news/allnews/sports.xml",
"http://ent.163.com/special/00031K7Q/rss_toutiao.xml",
"http://tech.163.com/special/00091JPQ/techimportant.xml");
//设置编码为UTF-8
header('Content-Type:text/html;charset= UTF-8');
for($i=0;$i
$rss_str="";
//打开rss地址,并读取,读取失败则中止
$fp = fopen($rssfeed[$i],"r") or die("can not open $rssfeed");
while ( !feof($fp) ) {
$buff .= fgets($fp,4096);
}
//关闭文件打开
fclose($fp);
//建立一个 XML 解析器
$parser = xml_parser_create();
//xml_parser_set_option -- 为指定 XML 解析进行选项设置
xml_parser_set_option($parser,XML_OPTION_SKIP_WHITE,1);
//xml_parse_into_struct -- 将 XML 数据解析到数组$values中
xml_parse_into_struct($parser,$buff,$values,$idx);
//xml_parser_free -- 释放指定的 XML 解析器
xml_parser_free($parser);
foreach ($values as $val) {
$tag = $val["tag"];
$type = $val["type"];
$value = $val["value"];
//标签统一转为小写
$tag = strtolower($tag);
if ($tag == "item" && $type == "open"){
$is_item = 1;
}else if ($tag == "item" && $type == "close") {
//构造输出字符串
$rss_str .= "".$title."
";
$is_item = 0;
}
//仅读取item标签中的内容
if($is_item==1){
if ($tag == "title") {$title = $value;}
if ($tag == "link") {$link = $value;}
}
}
//输出结果
echo $rss_str."
";
}
?>

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