(PHP 5)
date_sunrise — Returns time of sunrise for a given day and location
date_sunrise() returns the sunrise time for a given day (specified as a timestamp ) and location.
The timestamp of the day from which the sunrise time is taken.
| constant | description | example |
|---|---|---|
| SUNFUNCS_RET_STRING | returns the result as string | 16:46 |
| SUNFUNCS_RET_DOUBLE | returns the result as float | 16.78243132 |
| SUNFUNCS_RET_TIMESTAMP | returns the result as integer (timestamp) | 1095034606 |
Defaults to North, pass in a negative value for South. See also: date.default_latitude
Defaults to East, pass in a negative value for West. See also: date.default_longitude
Default: date.sunrise_zenith
Specified in hours.
Returns the sunrise time in a specified format on success, or FALSE on failure.
Every call to a date/time function will generate a E_NOTICE if the time zone is not valid, and/or a E_STRICT message if using the system settings or the TZ environment variable. See also date_default_timezone_set()
| Version | Description |
|---|---|
| 5.1.0 | Now issues the E_STRICT and E_NOTICE time zone errors. |
Example#1 date_sunrise() example
<?php
/* calculate the sunrise time for Lisbon, Portugal
Latitude: 38.4 North
Longitude: 9 West
Zenith ~= 90
offset: +1 GMT
*/
echo date("D M d Y"). ', sunrise time : ' .date_sunrise(time(), SUNFUNCS_RET_STRING, 38.4, -9, 90, 1);
?>
The above example will output something similar to:
Mon Dec 20 2004, sunrise time : 08:54