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date_sunrise

(PHP 5)

date_sunrise -- Returns time of sunrise for a given day and location

Description

mixed date_sunrise ( int timestamp [, int format [, float latitude [, float longitude [, float zenith [, float gmt_offset]]]]] )

date_sunrise() returns the sunrise time for a given day (specified as a timestamp) and location.

Parameters

timestamp

The timestamp of the day from which the sunrise time is taken.

format

Table 1. format constants

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

latitude

Defaults to North, pass in a negative value for South. See also: date.default_latitude

longitude

Defaults to East, pass in a negative value for West. See also: date.default_longitude

zenith

Default: date.sunrise_zenith

gmtoffset

Specified in hours.

Return Values

Returns the sunrise time in a specified format on success, or FALSE on failure.

Examples

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

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date_sunrise

Description

Parameters

Return Values

Examples

See Also