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# timezone_name_from_abbr

(no version information, might be only in CVS)

timezone_name_from_abbr -- Returns the timezone name from abbrevation

## 说明

string timezone_name_from_abbr ( string abbr [, int gmtOffset [, int isdst]] )

## 参数

`abbr`

  Time zone abbreviation.

`gmtOffset`

  Offset from GMT in seconds. Defaults to -1 which means that first found time zone corresponding to `abbr` is returned. Otherwise exact offset is searched and only if not found then the first time zone with any offset is returned.

`isdst`

  Daylight saving time indicator. If `abbr` doesn't exist then the time zone is searched solely by `offset` and `isdst`.

## 返回值

Returns time zone name on success or `FALSE` on failure.

## 范例

例 1. A timezone_name_from_abbr() example

`<?php echo timezone_name_from_abbr("CET") . "\n"; echo timezone_name_from_abbr("", 3600, 0) . "\n"; ?>`

上例的输出类似于：

    Europe/Berlin
    Europe/Paris

## 参见

timezone_abbreviations_list()

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