How to configure php server time settings

When building a php server, setting the server time is very important for some applications that require real-time operation. Configuring the correct time on the server ensures system stability and normal operation. This article will introduce how to configure the time of the php server.

1. Check the time zone setting of the current server

In Linux, you can use the tzselect command to check the time zone setting of the current server. After executing the command, follow the prompts to select the correct geographical location. For example:

tzselect
Please identify a location so that time zone rules can be set correctly.
Please select a continent or ocean.
 1) Africa
 2) Americas
 3) Antarctica
 4) Arctic Ocean
 5) Asia
 6) Atlantic Ocean
 7) Australia
 8) Europe
 9) Indian Ocean
10) Pacific Ocean
11) none - I want to specify the time zone using the Posix TZ format.
#? 5
Please select a country.
 1) Afghanistan        18) Israel              35) Qatar              52) Uzbekistan
 2) Armenia        19) Japan              36) Russia (default)      53) Vietnam
 3) Azerbaijan        20) Jordan              37) Saudi Arabia      54) Wake Island
 4) Bahrain        21) Kazakhstan          38) Singapore          55) Wallis and Futuna
 5) Bangladesh        22) Korea (North)          39) Sri Lanka          56) Yemen
 6) Bhutan        23) Korea (South)          40) Syria          57) Zambia
 7) British Indian Ocean Territory  24) Kuwait           41) Taiwan      58) Zimbabwe
 8) Brunei        25) Kyrgyzstan          42) Tajikistan
 9) Cambodia        26) Laos              43) Thailand
10) China (PRC)        27) Lebanon              44) Turkmenistan
11) Christmas Island 28) Macau              45) United Arab Emirates
12) Cocos Islands    29) Malaysia          46) Uzbekistan (west)
13) Cyprus        30) Mongolia          47) Vietnam
14) East Timor        31) Myanmar (Burma)      48) Yemen
15) Georgia        32) Nepal              49) Palestine
16) Hong Kong        33) Oman              50) Philippines
17) India        34) Pakistan          51) Qatar
#? 21

After selecting the correct geographical location, the time zone setting for that location will be displayed. For example:

The following information has been given:

        Japan

Therefore TZ='Asia/Tokyo' will be used.
Local time is now:      Wed Mar 27 16:42:20 JST 2019.
Universal Time is now:  Wed Mar 27 07:42:20 UTC 2019.
Is the above information OK?
1) Yes
2) No
#? 1

The selected time zone setting will be displayed along with the local local time and UTC time. If the setting is confirmed to be correct, select "Yes", otherwise select "No" to reset the time zone.

2. Modify the php.ini file

On the php server, you can modify the php.ini file to set the time zone. Edit the php.ini file, find the date.timezone setting item, and ensure that the item is correctly set to the time zone of the region where the server is located. Commenting this out will use the default time zone. For example:

date.timezone = Asia/Tokyo

Just set the time zone of the region where the server is located.

3. Use the date() function to modify the server time

php provides the date() function for formatting date and time. This function can also be used to modify the server time. The following is an example:

<?php date_default_timezone_set("Asia/Tokyo");
echo "当前时间是 " . date("Y/m/d h:i:sa");
?>

Set the time zone of the region where the server is located by using the date_default_timezone_set() function, and then use the date() function to output the date and time.

4. Modify the system time

On Linux, you can use the date command to modify the system time. For example:

sudo date -s "27 MAR 2019 12:30:00"

This will set the system time to March 27, 2019 12:30:00. Requires administrator privileges or running this command as root.

Summary

The timing of setting up your php server correctly is very important to ensure system stability and normal operation. This is achieved by checking the time zone setting of the current server, modifying the php.ini file, using the date() function and modifying the system time. These methods will ensure that the PHP server's time is set correctly, ensuring the stability and proper functioning of the application.

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