两个PHP脚本干扰，我无法理解为什么

These two pull out data from two different data bases. It's all good undtil I repeat the first one for a second time (to pull out the count of comments of more than one article), the second script (pulls out the data about vistis to the articles and arranges them by desc. order) stops working (no error, nothing, just doesn't provide an output). I'm no expert (yet) in the PHP so I can't seem to figure what is wrong in this sutuation. Maybe some of you will notice some obvious flaw which makes 'em interfere like that? These two pull out data from two different data