How to set time zone in php

How to set the time zone in php: 1. Modify the value of "date.timezone" in the configuration file "php.ini"; 2. Use the function "date_default_timezone_set" to temporarily set the time zone.

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

Time zone setting date.timezone in PHP

For the same timestamp, if the time zone is different, the obtained date and time string will also be different. Therefore, setting the correct time zone is essential.

Different time zones will affect the value of date('Y-m-d H:i:s', time()) or similar functions.

There are two ways to set the time zone:

1. Modify the value of date.timezone in the configuration file php.ini

date.timezone=Asia/Shanghai

or

date.timezone=Asia/Chongqing

It is set to the Shanghai time zone in Asia, which is China's time zone. After restarting the web server, it will take effect permanently.

2. Use the function to temporarily set the time zone

bool  date_default_timezone_set  (   string $timezone_identifier  )

Returns true if the setting is successful, false if it fails.

date_default_timezone_set( 'Asia/Shanghai' );

Function date_default_timezone_get() can get the time zone in effect at the function call and return the time zone string.

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