src/Services/Baidu-Push-Server-SDK-Php-3.0.1/lib/utils.php
public static function getMinuteTimestamp($now = null) {
        $now = $now === null ? time() : $now;
        $diff = $now % 60;
        return $now - $diff;
    }
public static function getMinuteTimestamp($now = null) {
        $now = $now === null ? time() : $now;
        $diff = $now % 60;
        return $now - $diff;
    }
public static function getMinuteTimestamp ( $ now = null ) { $ now = $ now === null ? time ( ) : $ now ; $ diff = $ now % 60 ; return $ now - $ diff ; }
get the timestamp at current minute start
@param int $num 指定时间
@return number
get the timestamp at current minute start