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<?php |
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namespace SubjectivePHP\DateTime\Utilities; |
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use DateTimeZone; |
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use SubjectivePHP\DateTime\Constants\TimezonesInterface; |
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/** |
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* Static utility class for working with DateTimeZone objects. |
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*/ |
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abstract class DateTimeZoneUtil implements TimezonesInterface |
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{ |
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/** |
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* @var array |
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*/ |
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const OUTLIERS = [ |
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'WIB' => self::TIMEZONE_ASIA_JAKARTA, //Western Indonesian Time |
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'FET' => self::TIMEZONE_EUROPE_HELSINKI, //Further-eastern European Time |
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'AEST' => self::TIMEZONE_AUSTRALIA_TASMANIA, //Australia Eastern Standard Time |
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'AWST' => self::TIMEZONE_AUSTRALIA_WEST, //Australia Western Standard Time |
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'WITA' => self::TIMEZONE_ASIA_MAKASSAR, |
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'AEDT' => self::TIMEZONE_AUSTRALIA_SYDNEY, //Australia Eastern Daylight Time |
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'ACDT' => self::TIMEZONE_AUSTRALIA_ADELAIDE, //Australia Central Daylight Time |
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]; |
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/** |
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* Returns a DateTimeZone instance for the give nameOrAbbreviation. |
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* |
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* @param string $nameOrAbbreviation The timezone nameOrAbbreviation. |
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* @param DateTimeZone $default The default timezone to return if none can be created. |
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* |
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* @return DateTimeZone|null |
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*/ |
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final public static function fromString(string $nameOrAbbreviation, DateTimeZone $default = null) |
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{ |
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try { |
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return new DateTimeZone($nameOrAbbreviation); |
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} catch (\Exception $e) { |
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if (array_key_exists($nameOrAbbreviation, self::OUTLIERS)) { |
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return new DateTimeZone(self::OUTLIERS[$nameOrAbbreviation]); |
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} |
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return $default; |
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} |
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} |
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/** |
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* Returns a DateTimeZone object based on gmt offset. |
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* |
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* @param int $gmtOffset Offset from GMT in seconds. |
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* @param bool $isDaylightSavings Daylight saving time indicator. |
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* |
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* @return DateTimeZone |
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*/ |
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final public static function fromOffset(int $gmtOffset, bool $isDaylightSavings) : DateTimeZone |
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{ |
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return self::fromString(timezone_name_from_abbr('', $gmtOffset, (int)$isDaylightSavings)); |
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} |
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/** |
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* Returns the long name of the given DateTimeZone. |
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* |
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* @param DateTimeZone $timezone The timezone object from which the long name should be obtained. |
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* |
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* @return string |
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*/ |
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final public static function getLongName(DateTimeZone $timezone) : string |
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{ |
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$nameFromTimeZone = $timezone->getName(); |
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if (strlen($nameFromTimeZone) > 6) { |
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return $nameFromTimeZone; |
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} |
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$nameFromAbbr = timezone_name_from_abbr($nameFromTimeZone); |
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return $nameFromAbbr === false ? $nameFromTimeZone : $nameFromAbbr; |
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} |
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} |
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subjective-php /
date
