How to find the domain is whether HTTP or HTTPS (with or without WWW) using PHP?
问题 I have million (1,000,000) domains list. +----+--------------+--------------------------+ | Id | Domain_Name | Correct_URL | +----+--------------+--------------------------+ | 1 | example1.com | http://www.example1.com | | 2 | example2.com | https://exmple2.com | | 3 | example3.com | https://www.example3.com | | 3 | example4.com | http://example4.com | +----+--------------+--------------------------+ ID and Domain_Name column is filled. Correct_URL column is empty. Question : I need to fill