The behaviour of these functions is affected by settings in php.ini.
Name | Default | Changeable | Changelog |
---|---|---|---|
date.default_latitude | "31.7667" | PHP_INI_ALL | Available since PHP 5.0.0. |
date.default_longitude | "35.2333" | PHP_INI_ALL | Available since PHP 5.0.0. |
date.sunrise_zenith | "90.583333" | PHP_INI_ALL | Available since PHP 5.0.0. |
date.sunset_zenith | "90.583333" | PHP_INI_ALL | Available since PHP 5.0.0. |
date.timezone | "" | PHP_INI_ALL | Available since PHP 5.1.0. |
Here's a short explanation of the configuration directives.
The default latitude.
The default longitude.
The default sunrise zenith.
The default sunset zenith.
The default timezone used by all date/time functions. Prior to PHP 5.4.0, this would only work if the TZ environment variable was not set. The precedence order for which timezone is used if none is explicitly mentioned is described in the date_default_timezone_get() page. See List of Supported Timezones for a list of supported timezones.
Note: The first four configuration options are currently only used by date_sunrise() and date_sunset().