正则表达式 - php替换网址？

Question

替换前：
http://www.163.com/cc/替换前内容/

替换后
http://www.163.com/cc/替换后内容/

Answer 1

$str="http://www.163.com/cc/content 교체 전/";
$preg = "/cc/(.+)//";
$after = preg_replace($preg, "To 대체 콘텐츠", $str);

Answer 2

으아악

Answer 3

으아아아