Very good tips for WP devs, just ran into this myself with one of our new plugins. We had used wp_remote_get/post everywhere except in one place where I had a moment of weakness and used file_get_contents(). I was kicking myself when we realized file_get_contents() is blocked on many web hosts, and swapped it over to wp_remote_get() which allowed us to troubleshoot errors much better!

Hey there, very nice article! Just a small correction, you did mentioned wp_remote_put() function on the 5th paragraph of the "They Are Very Capable" section, but I think you meant wp_remote_head() 😉

Why would you do that.. http client guzzle (recent releases), symfony client (interopability) and so many client has evolved.. wp really's too old for the ecosystem :/

Thanks you very much!