yeah I mostly use php7 for my things tho Is sad Linux has still not updated their repositories for php7 so I have to add private ones to use it. ( atleast not for 14.04 )
I love PHP 7 its works great just updated few days ago and its works faster then older version in start i didnt used php7 because smf was not supporting php7
I haven't used it yet. In most servers still use PHP5 or less. At least in which I use. I guess it will take a while before PHP7 is used wildly for production level servers.
PHP 7.0 is mcuh newer version of PHP so PHP 7 get more stability , security and also speed improvement over the previous php version like 5.5 or 5.6 but the problem is that not all CMS support PHP 7.0 . i think it is because some command removed in php 7 or maybe the syntax is different like python 2 to python 3 there are some syntax that different
so if you want the best speed out of your server just user PHP 7.0 now no need to wait except if your cms isnt support php7 yet . but if your cms doesnt support php7 just stick with php5 or find an alternative cms if you really want php7 that bad