The behaviour of these functions is affected by settings in php.ini.
Name | Default | Changeable | Changelog |
---|---|---|---|
date.default_latitude | "31.7667" | INI_ALL |
|
date.default_longitude | "35.2333" | INI_ALL |
|
date.sunrise_zenith | "90.833333" | INI_ALL |
Prior to PHP 8.0.0, the default was "90.583333" |
date.sunset_zenith | "90.833333" | INI_ALL |
Prior to PHP 8.0.0, the default was "90.583333" |
date.timezone | "UTC" | INI_ALL |
From PHP 8.2, a warning is emitted when setting this to an invalid value or an empty string. |
Here's a short explanation of the configuration directives.
date.default_latitude
float
The default latitude
ranging from 0
at the equator,
to +90
northward, and -90
southward.
date.default_longitude
float
The default longitude
ranging from 0
at the prime meridian
to +180
eastward and −180
westward.
date.sunrise_zenith
float
The default sunrise zenith.
The default value is 90°50'. The additional 50' is due to two components: the Sun's radius, which is 16', and the atmospheric refraction, which is 34'.
date.sunset_zenith
float
The default sunset zenith.
date.timezone
string
The default timezone used by all date/time functions. 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().