php中一个函数在多个类中只使用两三次，这个函数该放到哪里？-PHP Tutorial-php.cn

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php中一个函数在多个类中只使用两三次，这个函数该放到哪里？

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Jun 06, 2016 pm 08:42 PM

phpfunction

项目里有一个函数，在几个类中只使用了三次，我是把这个函数放到公用的函数库中，还是在每个类中都放？

放公用函数库感觉不够常用，放类中又感觉挺累赘的？

大家一般是怎么处理比较少调用的函数的？

回复内容：

项目里有一个函数，在几个类中只使用了三次，我是把这个函数放到公用的函数库中，还是在每个类中都放？

放公用函数库感觉不够常用，放类中又感觉挺累赘的？

大家一般是怎么处理比较少调用的函数的？

我认为凡是重复的代码都应该放到公用的地方，你都说了已经用了三次，以后说不准还要用。此外，把一个公用的东西方到了三个类中，你能忍吗。如果可以的话，可以写一个父类，把这个函数放里面，必要的类继承他就能用了

只是单独几个函数的话直接写成一个 trait 吧

凡有重复的代码，都提取出来做成一个静态类方法或者函数，因为你目前已经重复了，保不住以后还得重复使用。

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