Inserting multiple images in mysql, also inserts multiple rows - php

Question

I searched Google all over the place for an answer but I can't seem to find the right one so I'll try it here.
I want to store the users' firstname, lastname and the path of the images in the mysqli database and the image in the folder uploads. (the user can upload multiple images)
This works and is no problem.
The issue is:
When for example they type their firstname and lastname and select two images and press the upload button it uploads everything but it also creates two rows with the exact same values.
I want to store everyting in one row, see my code below:
<?php
$con = mysqli_connect('localhost','root','','img_db');
mysqli_select_db($con,'img_db');
$rn = mt_rand();
if(isset($_POST['submit'])&& isset($_FILES['image'])&& !empty($_POST['firstname'])&& !empty($_POST['lastname']))
{
$firstname = $_POST['firstname'];
$lastname = $_POST['lastname'];
for($i=0; $i<count($_FILES['image']['name']); $i++)
{
$tmp_name = $_FILES['image']['tmp_name'][$i];
$max_size = 100000;
$path = "uploads/";
$name = $_FILES['image']['name'][$i];
$size = $_FILES['image']['size'][$i];
$type = $_FILES['image']['type'][$i];
$ext = strtolower(substr($name, strpos($name, '.') +1));
$name = str_replace('_','',trim($name));
$name = str_replace('-','',trim($name));
$name = str_replace(' ','',trim($name));
$name = str_replace('__','',trim($name));
if(($ext=='jpg' || $ext=='jpeg' || $ext=='png' || $ext=='gif')&&($type=='image/jpeg' || $type=='image/png' || $type=='image/gif')&&$size<=$max_size)
{
if(move_uploaded_file($_FILES['image']['tmp_name'][$i], $path.$rn.$name))
{
mysqli_query($con,"INSERT into `img` (firstname,lastname,url) VALUES('$firstname','$lastname','$rn$name')");
}
}// END EXT
}// END FOR LOOP
}// END IF ISSET POST SUBMIT
?>

Answer 1

Suggestion 1
One solution is to store uploaded file urls in an array (declared before the for loop) and utilize the array outside of the for loop, like so:
if (isset(/* ... */)) {
// Outside your for loop
$files = array();
for (/* .. */) {
// Doing things
if (/* $ext stuff */) {
if (move_uploaded_file(/* ... */))
{
$files[] = $rn.$name;
}
} // End EXT
} // End FOR
// Utilize $files array to determine how you want to store all of these URLs in one field.
// Let's say you created a variable called $store with the desired representation.
mysqli_query($con,"INSERT into `img` (firstname,lastname,url) VALUES('$firstname','$lastname','$store')");
} // End ISSET
Suggestion 2
You could use a two-table structure (one table is users, one table is images) and create a foreign key relation from each image table row to a user table row via the desired user's primary key.
See: http://dev.mysql.com/doc/refman/5.6/en/create-table-foreign-keys.html