- 句子結尾 ;
- 指定變數 : $
- 註解 : // , # , /*
- coding Style : http://blog.kejyun.com/2013/05/Readable-Coding-Style.html
- In PHP, all keywords (e.g. if, else, while, echo, etc.), classes, functions, and user-defined functions are NOT case-sensitive.mark However; all variable names are case-sensitive.
define