php实现的太平洋时间和北京时间互转的自定义函数分享

/** * 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;}