使用REGEX获取字符串的一部分

Question

I have an Amazon link:

http://www.amazon.com/Pampers-Softcare-Fresh-Wipes-Count/dp/B007KXO998/ref=pd_zg_rss_ts_165796011_165796011_7?ie=UTF8&tag=elson06-20

I'm trying to get the product ID B007FHX9OK that is after dp/ and before ?ref=pd_zg_rss_ts_165796011_165796011_7 I want to get that using a regex or anything that can extract it.

The link of the url is static, it will not changed.

Answer 1

Here's what I did, since I'm pretty sure that the link has always the same format:

$link = 'http://www.amazon.com/Pampers-Softcare-Fresh-Wipes-Count/dp/B007KXO998/ref=pd_zg_rss_ts_165796011_165796011_7?ie=UTF8&tag=elson06-20'
$link = parse_url($link);
$link = explode('/',$link['path']);
$link = $link[3];
echo $link; //B007KXO998