want to insert multidimensional array value into php database with unique value - php

Question

I have one multidimensional-array and i want to insert into my database, there is one issue if one entry in my database and same entry is on my multidimensional-array that value should not insert again in my database.
$activity[] = array('user_id'=> $_SESSION['user_id'], 'choosen_date' => $ch_date, 'distance' => $distance, 'pace' => $pace );
Array
(
[0] => Array
(
[user_id] => 1200
[choosen_date] => 2018-12-11
[distance] => 1.72
[pace] => 12.4812
)
[1] => Array
(
[user_id] => 1200
[choosen_date] => 2018-12-09
[distance] => 3.17
[pace] => 3.8736
)
[2] => Array
(
[user_id] => 1200
[choosen_date] => 2018-11-14
[distance] => 2.26
[pace] => 6.3504
)
[3] => Array
(
[user_id] => 1200
[choosen_date] => 2018-11-07
[distance] => 0.53
[pace] => 3.6576
)
)
And following is my database entry
----------------------------------------------------
| S.No | user Id | choose date | distance | Pace |
----------------------------------------------------
| 1 | 1200 | 2018-12-09 | 3.17 | 3.8736 |
----------------------------------------------------
| 2 | 1200 | 2018-12-11 | 2.17 | 5.67 |
----------------------------------------------------
so here, in database S.no 1 and array index 1 both are the same entry so I want to insert rest value into my database. So how can I insert?

Answer 1

I am assuming that you are using MySQL database, you can use INSERT IGNORE INTO
or INSERT ON DUPLICATE KEY UPDATE

Answer 2

If you want to do it through PHP then you can try this.
$i=0;
foreach($activity as $key=>$val)
{
$sn_check=mysqli_query($con,"SELECT id FROM table WHERE S.No='$i'");
if(mysqli_num_rows($sn_check)==0)
{
$user_id=$val[$i]['user_id']; //all other values can be catch like this.
$query_insert=mysqli_query($con,"INSERT QUERY");
}
$i++;
}