04-08-2010
Strange, date and touch returning different times.
Hi guys,
Hope one of you guys can sort this out for me.
I first noticed this when users were uploading files from our website to our server and the time uploaded was +18 hours ahead of the current time. At first I assumed this was an issue with the coding, but didn't think it was likely as we are using moodle, which gets tested thoroughly.
After going through the actual moodle source code and seeing how the timestamp was generated I noticed it used the php function filemtime.
I then shelled into the server and typed out the command date, which returned the correct date. I then did touch test.txt and noticed that the modified date (using ls -l) for test.txt was 18 hours ahead, which lead me to believe that it wasn't anything to do with Moodle but the unix server itself.
The server is running Ubuntu 8.04.
If you need anymore information please let me know.
Thanks.
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LEARN ABOUT PHP
date_sunrise
DATE_SUNRISE(3) 1 DATE_SUNRISE(3)
date_sunrise - Returns time of sunrise for a given day and location
SYNOPSIS
mixed date_sunrise (int $timestamp, [int $format = SUNFUNCS_RET_STRING], [float $latitude = ini_get("date.default_latitude")], [float
$longitude = ini_get("date.default_longitude")], [float $zenith = ini_get("date.sunrise_zenith")], [float $gmt_offset])
DESCRIPTION
date_sunrise(3) returns the sunrise time for a given day (specified as a $timestamp) and location.
PARAMETERS
o $timestamp
- The $timestamp of the day from which the sunrise time is taken.
o $format
-
$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 |
| | |
+-----------------------+-------------------------------------------+
o $latitude
- Defaults to North, pass in a negative value for South. See also: date.default_latitude
o $longitude
- Defaults to East, pass in a negative value for West. See also: date.default_longitude
o $zenith
- Default: date.sunrise_zenith
o $gmtoffset
- Specified in hours.
RETURN VALUES
Returns the sunrise time in a specified $format on success or FALSE on failure.
ERRORS
/EXCEPTIONS
Every call to a date/time function will generate a E_NOTICE if the time zone is not valid, and/or a E_STRICT or E_WARNING message if using
the system settings or the $TZ environment variable. See also date_default_timezone_set(3)
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.1.0 | |
| | |
| | Now issues the E_STRICT and E_NOTICE time zone |
| | errors. |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
date_sunrise(3) 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
SEE ALSO
date_sunset(3).
PHP Documentation Group DATE_SUNRISE(3)