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例如:
define('db_host', $ini) ;
define('db_host','23213') ;
2018-01-08 17:42:17
Definitely not
数据分析师2017-09-30 22:43:49
Can constants be modified after they are defined? -PHP Chinese website Q&A-Can constants be modified after they are defined? -PHP Chinese website Q&A
Please watch and learn.
阿神2016-12-16 17:11:14
常量值被定义后,在脚本的其他任何地方都不能被改变,所以如果想修改的话,还是要回到定义常量的地方进行修改