php将从数据库取出的数据分为6个一组的二维数组

$presell = M('presell')->field('id,sname,num,weight,shop_price,endtime,supply,givetime')->where($info)->order('id desc')->select();

//将数据分为6个一组的二维数组

rsort($presell);

$newArr = [];

while(!empty($presell)) {

$count = 6;

$tmpArr = [];

for($i = 0; $i< $count ; $i++) {

$tmpArr[] = array_pop($presell);

}

$newArr[] = $tmpArr;

}

foreach ($newArr as $key => $value) {

foreach ($value as $k => $val) {

if(empty($val)){

unset($newArr[$key][$k]);

}

}

}

$this->assign('presell',$newArr);