PHP / MySQL内爆成多行？

is it possible to implode a checkbox value into multiple values to insert into a database?

At current I have this:

$tags = implode(', ', $_POST['checkboxname']);

This gives me the value of "testtag1, testtag2"

How would I split this up so it would go into the database like:

Blog ID ¦ Tag
------------------
1       ¦ testtag1

1       ¦ testtag2

Not sure how to make the implode function seperate them as this:

$query2 = mysqli_query($myConnection, "INSERT INTO blogtags (blogid, tag) VALUES('$blogid','$tags')") or die (mysqli_error($myConnection));

just inserts the two values together in one row.

Any help would be great! Thanks

Try this example:

$tags = $_POST['checkboxname'] ; //Take the array of tags.
$id = 1 ;                        //Set needed id.

$values = array() ;

foreach($tags as $tag){
  $tag = $myConnection->real_escape_string($tag);
  $values[] = " ('{$id}', '{$tag}') " ;
}

$values = implode(" , ", $values) ;
$query = "INSERT INTO blogtags (blogid, tag) VALUES {$values} ; " ;