Directive ‘track_errors‘ is deprecated in Unknown on line 0
错误信息：
Warning: Module ‘mysqli‘ already loaded in Unknown on line 0
原因：
重复加载了
--------------------------------------------------
处理办法：
进入php.ini 把;extension=mysqli 加个分号注释掉就可以了
Warning: Module 'mysqli' already loaded in Unknown on line 0
原文：https://www.cnblogs.com/vip-deng-vip/p/12679234.html