How to change time zone in php.ini file

PHP is a very popular server-side programming language. When developing web applications using PHP, we sometimes need to set the time zone in PHP. The default time zone of PHP is "UTC (Coordinated Universal Time)", which is not the time zone we want in many cases, so we need to change the time zone setting in the php.ini file. This article will explain how to change the time zone in the php.ini file.

PHP.ini is the PHP configuration file, which contains all PHP configuration options, including time zone settings. In most cases, the php.ini file is located in the root directory of the web server. If you are using a Linux server, you can find the location of the php.ini file by entering the following command in the terminal:

sudo find / -name php.ini

This will search the entire server for the php.ini file and list its location. Typically, the php.ini file is located in one of the following locations:

/etc/php.ini
/usr/local/lib/php.ini

Once you find the php.ini file, you can open it with a text editor and look for the line for the time zone settings. Find the following lines:

[Date]
; Defines the default timezone used by the date functions
; http://php.net/date.timezone
;date.timezone =

Under these comment lines, you can see that "date.timezone" is set. Uncomment (remove the ";") and enter your desired time zone after the equal sign. For example, if you are located in Beijing, you can use "Asia/Shanghai" as the time zone. The changed line should look like this:

[Date]
; Defines the default timezone used by the date functions
; http://php.net/date.timezone
date.timezone = Asia/Shanghai

Finally, save and close the php.ini file. Restart the web server for the changes to take effect.

At this point, you have successfully changed the time zone settings in the php.ini file. When using date and time functions in PHP applications, the system will use the time zone you set. This will ensure that your application reflects local time correctly.

In short, modifying PHP time zone settings requires changing the php.ini file. Depending on your server setup, the php.ini file may be located in a different location. Find the php.ini file and find the "date.timezone" setting. Uncomment and set the time zone you need, save and close the file, and restart the web server to take effect.

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