PHP: Runtime Configuration - Manual (original) (raw)
The behaviour of these functions is affected by settings in php.ini.
Date/Time Configuration Options
| 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. |
For further details and definitions of the INI_* modes, see the Where a configuration setting may be set.
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 thedate_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 bydate_sunrise() and date_sunset().
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