date_default_timezone_get(3) [php man page]
DATE_DEFAULT_TIMEZONE_GET(3) 1 DATE_DEFAULT_TIMEZONE_GET(3) date_default_timezone_get - Gets the default timezone used by all date/time functions in a script SYNOPSIS
string date_default_timezone_get (void ) DESCRIPTION
In order of preference, this function returns the default timezone by: o Reading the timezone set using the date_default_timezone_set(3) function (if any) o Prior to PHP 5.4.0 only: Reading the $TZ environment variable (if non empty) o Reading the value of the date.timezone ini option (if set) o Prior to PHP 5.4.0 only: Querying the host operating system (if supported and allowed by the OS). This uses an algorithm that has to guess the time- zone. This is by no means going to work correctly for every situation. A warning is shown when this stage is reached. Do not rely on it to be guessed correctly, and set date.timezone to the correct timezone instead. If none of the above succeed, date_default_timezone_get will return a default timezone of UTC. RETURN VALUES
Returns a string. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.4.0 | | | | | | | The TZ environment variable is no longer used to | | | guess the timezone. | | | | | 5.4.0 | | | | | | | The timezone is no longer guessed from informa- | | | tion available through the operating system as | | | the guessed timezone can not be relied on. | | | | +--------+---------------------------------------------------+ EXAMPLES
Example #1 Getting the default timezone <?php date_default_timezone_set('Europe/London'); if (date_default_timezone_get()) { echo 'date_default_timezone_set: ' . date_default_timezone_get() . '<br />'; } if (ini_get('date.timezone')) { echo 'date.timezone: ' . ini_get('date.timezone'); } ?> The above example will output something similar to: date_default_timezone_set: Europe/London date.timezone: Europe/London Example #2 Getting the abbreviation of a timezone <?php date_default_timezone_set('America/Los_Angeles'); echo date_default_timezone_get() . ' => ' . date('e') . ' => ' . date('T'); ?> The above example will output: America/Los_Angeles => America/Los_Angeles => PST SEE ALSO
date_default_timezone_set(3), "List of Supported Timezones". PHP Documentation Group DATE_DEFAULT_TIMEZONE_GET(3)
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DATEFMT_CREATE(3) 1 DATEFMT_CREATE(3) IntlDateFormatter::create - Create a date formatter Object oriented style SYNOPSIS
publicstatic IntlDateFormatter IntlDateFormatter::create (string $locale, int $datetype, int $timetype, [mixed $timezone = NULL], [mixed $calendar = NULL], [string $pattern = ""]) DESCRIPTION
Object oriented style (constructor) IntlDateFormatter::__construct (string $locale, int $datetype, int $timetype, [mixed $timezone = NULL], [mixed $calendar = NULL], [string $pattern = ""]) Procedural style IntlDateFormatter datefmt_create (string $locale, int $datetype, int $timetype, [mixed $timezone = NULL], [mixed $calendar = NULL], [string $pattern = ""]) Create a date formatter. PARAMETERS
o $locale - Locale to use when formatting or parsing or NULL to use the value specified in the ini setting intl.default_locale. o $datetype - Date type to use ( none, short, medium, long, full). This is one of the IntlDateFormatter constants. It can also be NULL, in which case ICUs default date type will be used. o $timetype - Time type to use ( none, short, medium, long, full). This is one of the IntlDateFormatter constants. It can also be NULL, in which case ICUs default time type will be used. o $timezone - Time zone ID. The default (and the one used if NULL is given) is the one returned by date_default_timezone_get(3) or, if appli- cable, that of the IntlCalendar object passed for the $calendar parameter. This ID must be a valid identifier on ICUs database or an ID representing an explicit offset, such as GMT-05:30. This can also be an IntlTimeZone or a DateTimeZone object. o $calendar - Calendar to use for formatting or parsing. The default value is NULL, which corresponds to IntlDateFormatter::GREGORIAN. This can either be one of the IntlDateFormatter calendar constants or an IntlCalendar. Any IntlCalendar object passed will be clone; it will not be changed by the IntlDateFormatter. This will determine the calendar type used (gregorian, islamic, persian, etc.) and, if NULL is given for the $timezone parameter, also the timezone used. o $pattern - Optional pattern to use when formatting or parsing. Possible patterns are documented at http://userguide.icu-project.org/format- parse/datetime. RETURN VALUES
The created IntlDateFormatter or FALSE in case of failure. CHANGELOG
+-----------------+---------------------------------------------------+ | Version | | | | | | | Description | | | | +-----------------+---------------------------------------------------+ |5.5.0/PECL 3.0.0 | | | | | | | An IntlCalendar object is allowed for $calendar. | | | Objects of type IntlTimeZone and DateTimeZone are | | | allowed for $timezone. Invalid timezone identi- | | | fiers (including empty strings) are no longer | | | allowed for $timezone. If NULL is given for | | | $timezone, the timezone identifier given by | | | date_default_timezone_get(3) will be used instead | | | of ICUs default. | | | | +-----------------+---------------------------------------------------+ EXAMPLES
Example #1 datefmt_create(3) example <?php $fmt = datefmt_create( "en_US" ,IntlDateFormatter::FULL, IntlDateFormatter::FULL, 'America/Los_Angeles', IntlDateFormatter::GREGORIAN ); echo "First Formatted output is ".datefmt_format( $fmt , 0); $fmt = datefmt_create( "de-DE" ,IntlDateFormatter::FULL, IntlDateFormatter::FULL, 'America/Los_Angeles',IntlDateFormatter::GREGORIAN ); echo "Second Formatted output is ".datefmt_format( $fmt , 0); $fmt = datefmt_create( "en_US" ,IntlDateFormatter::FULL, IntlDateFormatter::FULL, 'America/Los_Angeles',IntlDateFormatter::GREGORIAN ,"MM/dd/yyyy"); echo "First Formatted output with pattern is ".datefmt_format( $fmt , 0); $fmt = datefmt_create( "de-DE" ,IntlDateFormatter::FULL, IntlDateFormatter::FULL, 'America/Los_Angeles',IntlDateFormatter::GREGORIAN ,"MM/dd/yyyy"); echo "Second Formatted output with pattern is ".datefmt_format( $fmt , 0); ?> Example #2 OO example <?php $fmt = new IntlDateFormatter( "en_US" ,IntlDateFormatter::FULL, IntlDateFormatter::FULL, 'America/Los_Angeles',IntlDateFormatter::GREGORIAN ); echo "First Formatted output is ".$fmt->format(0); $fmt = new IntlDateFormatter( "de-DE" ,IntlDateFormatter::FULL, IntlDateFormatter::FULL, 'America/Los_Angeles',IntlDateFormatter::GREGORIAN ); echo "Second Formatted output is ".$fmt->format(0); $fmt = new IntlDateFormatter( "en_US" ,IntlDateFormatter::FULL, IntlDateFormatter::FULL, 'America/Los_Angeles',IntlDateFormatter::GREGORIAN ,"MM/dd/yyyy"); echo "First Formatted output with pattern is ".$fmt->format(0); $fmt = new IntlDateFormatter( "de-DE" ,IntlDateFormatter::FULL, IntlDateFormatter::FULL, 'America/Los_Angeles',IntlDateFormatter::GREGORIAN , "MM/dd/yyyy"); echo "Second Formatted output with pattern is ".$fmt->format(0); ?> The above example will output: First Formatted output is Wednesday, December 31, 1969 4:00:00 PM PT Second Formatted output is Mittwoch, 31. Dezember 1969 16:00 Uhr GMT-08:00 First Formatted output with pattern is 12/31/1969 Second Formatted output with pattern is 12/31/1969 SEE ALSO
datefmt_format(3), datefmt_parse(3), datefmt_get_error_code(3), datefmt_get_error_message(3). PHP Documentation Group DATEFMT_CREATE(3)