get() can get the data. When you get to preg_match_all, you can only get the first two items. The rest will show that there is no record yet. If you modify $i Starting from the third item, only the first two are obtained, so the third item has data, but preg_match_all cannot be obtained in the loop
Various great gods have appeared, please help analyze it. Baidu and Google can’t find similar problems, so it’s helpful for the time being