调试生成的trace文件如下，(trace里的文件记录的时间是UTC)

TRACE START [2018-01-12 02:39:46]

0.0024 363464 +0 -> calc_money(double, double) D:\wamp64\www\shakedown\index.php:10

0.0026 363464 >=> 53.5

0.0027 363464 +0 -> xdebug_stop_trace() D:\wamp64\www\shakedown\index.php:11

0.0028 363544

TRACE END [2018-01-12 02:39:46]

通过代码输出的时间是本地时间

echo date("h:i:s");

已经修改php.ini中的

[Date]

; Defines the default timezone used by the date functions

; http://php.net/date.timezone

date.timezone ="PRC"

也修改了apache下的cofig文件

#

# If you wish httpd to run as a different user or group, you must run

# httpd as root initially and it will switch.

#

# User/Group: The name (or #number) of the user/group to run httpd as.

# It is usually good practice to create a dedicated user and group for

# running httpd, as with most system services.

#

User daemon

Group daemon

php_value date.timezone PRC