PHP extensions Development Notes, Based on php 7.1.x version.
Reference links: PHP7 Internal @laruence , PHP7内核剖析 @pangudashu , PHP扩展开发及内核应用 @walu , PHP扩展开发笔记 @Leon2012 , PHP Internals Book
cd php-7.1.x/ext
./ext_skel --extname=myfunctions --proto=myfunctions.def