date_default_timezone_get
http://drakecms.sf.net/index.php?option=content&id=32&Itemid=10
A short tutorial which explains how to consistently implement timezones with PHP4 while remaining forward compatible with PHP5.
date_default_timezone_set
(PHP 5 >= 5.1.0)
date_default_timezone_set — Sets the default timezone used by all date/time functions in a script
Beschreibung
bool date_default_timezone_set
( string
$timezone_identifier
)date_default_timezone_set() sets the default timezone used by all date/time functions.
Hinweis:
Since PHP 5.1.0 (when the date/time functions were rewritten), every call to a date/time function will generate a
E_NOTICEif the timezone isn't valid, and/or aE_WARNINGmessage if using the system settings or the TZ environment variable.
Instead of using this function to set the default timezone in your script, you can also use the INI setting date.timezone to set the default timezone.
Parameter-Liste
-
timezone_identifier -
The timezone identifier, like UTC or Europe/Lisbon. The list of valid identifiers is available in the Liste unterstützter Zeitzonen.
Rückgabewerte
This function returns FALSE if the
timezone_identifier isn't valid, or TRUE
otherwise.
Beispiele
Beispiel #1 Getting the default timezone
<?php
date_default_timezone_set('America/Los_Angeles');
$script_tz = date_default_timezone_get();
if (strcmp($script_tz, ini_get('date.timezone'))){
echo 'Script timezone differs from ini-set timezone.';
} else {
echo 'Script timezone and ini-set timezone match.';
}
?>
Changelog
| Version | Beschreibung |
|---|---|
| 5.3.0 |
Now throws E_WARNING rather than
E_STRICT.
|
| 5.1.2 |
The function started to validate the
timezone_identifier parameter.
|
Siehe auch
- date_default_timezone_get() - Gets the default timezone used by all date/time functions in a script
- Liste unterstützter Zeitzonen
add a note
User Contributed Notesdate_default_timezone_set
legolas558 d0t users dot sf dot net
10-Jun-2007 03:34
10-Jun-2007 03:34
PeerGoal.com
12-Feb-2007 01:21
12-Feb-2007 01:21
The problem:
date() [function.date]: It is not safe to rely on the system's timezone settings. Please use the date.timezone setting, the TZ environment variable or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'America/Los_Angeles' for 'PST/-8.0/no DST' instead
Of course this is a problem that recently surfaced since PHP5. Quick fix is to set your time zone, add this line to your php code:
date_default_timezone_set("America/Los_Angeles");
davidn at datalinktech dot com dot au
22-Dec-2006 02:27
22-Dec-2006 02:27
Note that there may be some unexpected side-effects that result from using either set_default_timezone() or the putenv("TZ=...") workalike for earlier PHP versions. ANY date formatted and output either by PHP or its apache host process will be unconditionally expressed in that timezone.
This does indeed include the web server's logs and other output files and reports which by default usually do not include any indication of timezone. This has a further side-effect on log processing and analysis, obviously.
Chris
23-Nov-2006 07:14
23-Nov-2006 07:14
See the user contributed notes for the putenv function for a workaround for previous versions of PHP.