Insert multiple rows into mysql database (items separated by comma) - php

Question

need help...!!!
i have 2000 number of values like (3458,1356,....n)
i want to post them from html input field as $_POST['roll']; along with few other columns which has similar values like board (dhaka,dhaka,dhaka) .. i want to insert them into database with php at once not one by one..
NOTE: i know there is a way to insert multiple rows but it will be time consuming to create that query for 2000 values.. so i want to use 2000 values at once with comma..
result should be like this
+---------+-------------+
| board | roll |
+---------+-------------+
| dhaka | 3456 |
| dhaka | 4574 |
| dhaka | 6357 |
| dhaka | 2467 |
+---------+-------------+
i am using this query to post single row at a time
$board = $_POST['board'];
$roll = $_POST['roll'];
$query = "INSERT INTO `host`.`result` (`board`, `roll`) VALUES ('$board','$roll') "

Answer 1

At first,
you can use php explode() function to make an php array. Then you INSERT your data using loop depending on Array size.
Code Example :
$roll = array();
$board = array();
$roll = (explode(",",$_POST['roll']));
$board = (explode(",",$_POST['board']));
$arraySize = sizeof($roll);
for($i=0; $i<$arraySize ; $i++){
$query = "INSERT INTO `host`.`result` (`board`, `roll`) VALUES ($board[$i],$roll[$i]) "
}