PHP 核心关键词（预留字）表
由 lugir 于 星期六, 07/16/2011 - 18:55 发布
| __CLASS__ | clone | endif |
| __FILE__ | const | endswitch |
| __FUNCTION__ | continue | endwhile |
| __LINK__ | declare | eval() |
| __METHOD__ | default | exception |
| abstract | die() | exit() |
| And | Do | extends |
| array() | echo() | extends |
| as | else | final |
| break | elseif | for |
| case | empty() | foreach |
| catch | enddeclare | function |
| cfunction | endfor | global |
| class | endforeach | if |
| implements | php_user_filter | switch |
| include() | print() | throw |
| include_once() | private | try |
| interface | protected | unset() |
| isset() | public | use |
| list() | require() | var |
| new | require_once() | while |
| old_function | return() | xor |
| or | static |