如何使用PHP和Mysql按照Json对象值将数据插入表中

I need one help. I need to insert multiple data as per some Json object value into table using PHP and MySQL. I am explaining my code below.

$commnt=[{
   'day_id':2,
   'comment':'vodka1'
},{
  'day_id':3,
  'comment':'vodka2'
}
]

$result=[{
    'day_id':1,
    'restaurant':'193'
},{
  'day_id':2,
  'restaurant':'193'
},{
  'day_id':3,
  'restaurant':'193'
}
]

Here i need to enter all data from both Json object into this below table as per day_id. I am explaining column of my table below.

db_details:

id   day_id   restaurant  comment

Here my requirement is when day_id will same the respective comment field value will entry into table other wise the comment filed value will remain blank.The expected out put is given below.

id    day_id   restaurant   comment

1       1        193               

2       2        193         vodka1

3       3        193         vodka3

My query is given below.

$insertintodetails=mysqli_query($connect,'INSERT INTO db_details
(day_id,restaurant,comment) values ("'. $result.'","'.$result[$i]['restaurant'].'","'.$commnt[$i]['comment'].'")');

Here there may be many use cases,like both Json object length may be same or different but the comment should insert as per day_id otherwise it will remain blank. In my query i can not insert as per required. Please help me to resolve this issue.

I create an example from above your question detail. You can try below code. And it should work for you...

//For example taken array and convert it to JSON    
$comment = json_encode(array(array('day_id' => '2', 'comment' => 'vodka1'), array('day_id' => '3', 'comment' => 'vodka2')));
$result = json_encode(array(array('day_id' => '1', 'restaurant' => '193'), array('day_id' => '2', 'restaurant' => '193'), array('day_id' => '3', 'restaurant' => '193')));

//Convert JSON to array...
$arrComment = json_decode($comment, true);
$arrResult = json_decode($result, true);

foreach($arrResult AS $keyResult => $dataResult){
    $day_id = $dataResult['day_id'];//day_id
    $restaurant = $dataResult['restaurant'];//rasturant
    $strComment = '';//comment
    //Check and extract comment value from multi dimensional comment($arrComment) array...
    if($getComment = find_comment_with_dayid($arrComment, $day_id)){
      $strComment = $getComment;
    }

    //Insert records...
    $insertintodetails=mysqli_query($connect,'INSERT INTO db_details
(day_id, restaurant, comment) values ("'. $day_id .'","'. $restaurant .'","'. $strComment .'")');
}


//Function will return comment for matched day_id
function find_comment_with_dayid($arrComment, $fieldKey) {
    foreach($arrComment as $indCommenr => $dataComment) {
        //Check for day_id, matched then return comment...
        if($dataComment['day_id'] == $fieldKey) return $dataComment['comment'];
    }
    return FALSE;
}

Here, I taken example array for avoid JSON issue reported on your question. Hope this work well!

$newArray = $insertintodetails = array();
foreach($result as $rs)
{
  $newArray[$rs->day_id] = [
    "`day_id`=>'{$rs->day_id}'",
    "`restaurant`=>'{$rs->restaurant}'"
];
}
foreach($commnt as $rs){
  $newArray[$rs->day_id][] = "`comment`='{$rs->comment}'";
}
foreach($newArray as $rs){
  $insertintodetails[]=mysqli_query($connect,'INSERT INTO db_details SET '.implode(',',$rs));
}