public function getGoodsSN() 
    {
        $step = 5000;
        $start = 100;
        $max = Goods::max('sn');
        $max = count($max) && $max > $start ? $max : $start;
        $sn = $max+1;
        $sn_str = strval($sn);
        if(str_contains($sn_str, '4')) {
            $sn_str = str_replace('4', '5', $sn_str);
        }
        $sn = intval($sn_str);

        $in_offer = Offer::where('sn', $sn)->first();
        $max_offer = Offer::max('sn');

        if(count($in_offer)) {
            $sn = $step * ceil($max_offer / $step)+ $step;
        }
        return $sn;
    }
public function getGoodsSN() 
    {
        $step = 5000;
        $start = 100;
        $max = Goods::max('sn');
        $max = count($max) && $max > $start ? $max : $start;
        $sn = $max+1;
        $sn_str = strval($sn);
        if(str_contains($sn_str, '4')) {
            $sn_str = str_replace('4', '5', $sn_str);
        }
        $sn = intval($sn_str);

        $in_offer = Offer::where('sn', $sn)->first();
        $max_offer = Offer::max('sn');

        if(count($in_offer)) {
            $sn = $step * ceil($max_offer / $step)+ $step;
        }
        return $sn;
    }
public function getGoodsSN ( ) { $ step = 5000 ; $ start = 100 ; $ max = Goods :: max ( 'sn' ) ; $ max = count ( $ max ) && $ max > $ start ? $ max : $ start ; $ sn = $ max + 1 ; $ sn_str = strval ( $ sn ) ; if ( str_contains ( $ sn_str , '4' ) ) { $ sn_str = str_replace ( '4' , '5' , $ sn_str ) ; } $ sn = intval ( $ sn_str ) ; $ in_offer = Offer :: where ( 'sn' , $ sn ) -> first ( ) ; $ max_offer = Offer :: max ( 'sn' ) ; if ( count ( $ in_offer ) ) { $ sn = $ step * ceil ( $ max_offer / $ step ) + $ step ; } return $ sn ; }
get shop sn
get shop sn