当码农多年，始终进步不大，前面说了第一个原因是没有明确的目标；第二个原因是没有养成良好的习惯（即优秀的职业规范）。

1）pear 规范 http://pear.php.net/manual/en/standards.php；

2）This could be any combination of PSR’s，规范见 https://github.com/php-fig/fig-standards/tree/master/accepted

3）These recommendations are merely a set of rules that some  project lick symfony, Drupal, Zend. 规范见

http://symfony.com/doc/current/contributing/code/standards.html