php实现的太平洋时间和北京时间互转的自定义函

/

  太平洋时间转北京时间

 /

public function pacificToPRC($time=''){

 date_default_timezone_set('Pacific/Apia');

 if(empty($time)){

 $time = time();

 }

 date_default_timezone_set('Asia/Shanghai');

 $date = date('Y-m-d H:i:s',$time);

 $time = strtotime($date);

 return $time;

}
/

  北京时间转太平洋时间

  @param unknown_type $time

 /

public function PRCToPacific($time=''){

 if(empty($time)){

 date_default_timezone_set('Asia/Shanghai');

 $time = time();

 }

 date_default_timezone_set('Pacific/Apia');

 $date = date('Y-m-d H:i:s',$time);

 $time = strtotime($date);

 return $time;

}