Insert multiple values in one column mysql? - mysql

Question

I have a table of checkboxes and values, if a user selects a checkbox they select the value of the id in an array called checkedHW for simplicity sake this is what code looks like:
$ids = implode(',',arrayofids);
$sql = "insert into table(id, type) values($ids,type);
$db->query($sql);
echo query for testing:
"insert into table('id1,id2','type')
I figured that if I loop through this query I could hypothetically do this:
"insert into table('id1','type');"
"insert into table('id2','type');"
but I'm not exactly quite sure how to do, any help would be wonderful :)
I actually solved it using:
for($i=0;$i<count(arrayofids); $i++){
$sql = "insert into table(id,type) values(array[$i], 'type'";
$db->query($sql);}
I hope that helps someone and thank you guys for the help!

Answer 1

You could do something like this:
$base = 'INSERT INTO table (id, type) VALUES (';
$array = array(1, 2, 3, 4);
$values = implode(", 'type'), (", $array);
$query = $base . $values . ", 'type')";
$db->query($query);
This is what would be getting submitted:
INSERT INTO table (id, type) VALUES (1, 'type'), (2, 'type'), (3, 'type'), (4, 'type')

Answer 2

Both query are completely different
insert into table('id1,id2','type') will insert single row
id1,id2 | type
whereas
insert into table('id1','type');"
insert into table('id2','type');"
will insert two rows
id1 | type
id2 | type
so if your id column is int type then you cant run first query

Answer 3

If you have a series of checkboxes, and wanting to insert the values into your table, you could loop through them like this:
<?php
$values = array();
foreach ($_POST['field_name'] as $i => $value) {
$values[] = sprintf('(%d)', $value);
}
$values = implode(',', $values);
$sql = "INSERT INTO `table_name` (`column_name`) VALUES $values";
This will give you a SQL query similar to:
INSERT INTO `table_name` (`column_name`) VALUES (1),(2),(3),(4)
Hope this help.