因为网站需要读取不同来源的rss feed，写了一个php程序来循环读取rss feed，为了方便阅读及了解程序实现过程，加上了注释，和大家共同学习。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：
".$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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