php compile source to support mysqli

php installed; but mysqli not supported.
1. php -i |grep -i configure,
找到编译时的configure，拷贝出来。
2. 在拷出的./configure 串后附加上--with-mysqli ,重新编译安装（make;sudo make install）
3. php -i |grep -i mysqli
应该已经支持。

It is not safe to rely on the system's timezone settings
【PHP Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'UTC' for '8.0/no DST'。。。
在php.ini文件中 添加上date.timezone=PRC

php.ini位置：
php -i |grep -i php.ini 找到设置的php.ini文件路径。系统将在此处寻找php.ini文件。