(PHP 5 >= 5.3.0, PHP 7, PHP 8)
timezone_version_get — Gets the version of the timezonedb
timezone_version_get(): string
Returns the current version of the timezonedb.
This function has no parameters.
Returns a string in the format YYYY.increment, such as 2022.2.
If you have a timezone database version that is old (for example, it doesn't show the current year), then you can update the timezone information by either upgrading your PHP version, or installing the » timezonedb PECL package.
Some Linux distributions patch PHP's date/time support to use an alternative source for timezone information. In which case this function will return 0.system. You are encouraged to install the » timezonedb PECL package in that case as well.
Example #1 Getting the timezonedb version
<?php echo timezone_version_get();
The above example will output something similar to:
2022.2
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https://www.php.net/manual/en/function.timezone-version-get.php