错误截图
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 the timezone ‘UTC‘ for now, but please set date.timezone to select your timezone. in C:\phpStudy\WWW\yii\common\config\bootstrap.php on line 32 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 the timezone ‘UTC‘ for now, but please set date.timezone to select your timezone. in C:\phpStudy\WWW\yii\common\config\bootstrap.php on line 33
具体解决方法：
修改php.ini配置文件
在php.ini配置文件中找到： ;date.timezone = ，把前面的分号去掉在 “=”后面加上时区。
date.timezone = "Asia/Shanghai"
或者
date.timezone="Asia/Chongqing"
修改完后，重启apache即可。
原文：https://www.cnblogs.com/zhangyouwu/p/10129865.html