我想从该网站页面源的标签获取数据（http://champion.gg/champion/Riven）。进行一些计算。
我想要获取的数据是第二个和最后一个值（在本例中为 48.94 和 55.29）
“经验率”：[46.34,48.94,50.84,53.51,]
在 matchupData.championData 区域。
<script>
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matchupData.patchHistory = ["5.16","5.17","5.18","5.19","5.20"];
/* Has general data on the chosen champion */
</script>
我想将这些值存储在 mysql 数据库中。
这就是我所拥有的。
function curl($url) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
$data = curl_exec($ch);
curl_close($ch);
return $data;
}
function scrape_between($data, $start, $end){
$data = stristr($data, $start);
$data = substr($data, strlen($start));
$stop = stripos($data, $end);
$data = substr($data, 0, $stop);
return $data;
}
$scraped_page = curl("http://champion.gg/champion/Riven");
$scraped_data = scrape_between($scraped_page, '],"experienceRate":[', '],"gameLength":[');
echo $scraped_data;
它回来了
46.34,48.94,50.84,53.51,55.29
但我似乎无法找出如何隔离 48.94（第二个）和 55.29（最后一个）值。
任何帮助将不胜感激
如果字符串中的数字用“,”分隔，只需使用explode()将其除以数字，然后从结果数组中取出第二个和最后一个，瞧，完成。
解决这个问题的有趣方法是：
这并不是一个真正的 php 解决方案，但是很干净，并且较少挖掘字符串。