PHP 替换和删除？

Question

我有随机的产品链接 URL。

我想要的结果就像>

http://yourdomain.com/index.php?main_page=product_info&products_id=5 产品 ID = 5 或者 http://yourdomain.com/index.php?main_page=product_info&products_id=3210:cdfa96a858cdde666a79b09207528297 产品 ID = 3210

提前致谢

Answer 1

$string = "http://yourdomain.com/index.php?main_page=product_info&products_id=5";
$pattern = "/products_id=(\d+)/";
preg_match($pattern, $string, $matches);
$out = "Product Id = ".$matches[1];