在「PHP Versions Stats - 2017.1 Edition」這邊分析了 Packagist 上的 access log 而得到的：
可以看到 PHP 7.0 與 7.1 總算是慢慢爬上來了... 另外一個頗有趣的數字是在 comment 提到的 HHVM：
@ocramius: These numbers ignore Travis CI and other CI systems that set the "CI" env var in their workers. Without excluding those HHVM is around 0.95% so it's still low but those .36% is probably actual usage.
還是有人在用...