PHP Insert Multidimensional Array into mysql - php

Question

i try to store the booking booths into database based on user selection, there are 10 check boxes for each booths and user can choose which day they want to reserve booths. For each check box has it own field in database, if user choose booth A01, D1 and D2, when he press reserve button, it will insert value into D1 and D2. But I dont know how to get the checked checkbox value to store in database
my booth interface
http://i.imgur.com/umYcI.gif
my table structure
http://i.imgur.com/vKh6R.gif
My coding
<?php
session_start();
if ( !isset($_SESSION['AUTHORIZED_USERNAME']) || empty($_SESSION['AUTHORIZED_USERNAME']) ) {
header("location:index.php");
}else{
$user=$_SESSION['AUTHORIZED_USERNAME'];
}
include('db.php');
if($_REQUEST){
$id = $_REQUEST['search_category_id'];
$query2 = mysql_query("SELECT filenameBig, filename, url FROM eventinfo where eventID ='$id'");
$row = mysql_fetch_array($query2, MYSQL_ASSOC);
if($id == -1)
{
echo "<style type='text/css'>#btn_submit{visibility:hidden}</style>";
}
else{
/*echo "<a href='{$row['url']}'>Click me!</a>";*/
echo "<p><br><img src='{$row['filename']}' alt='' /></p>";
echo "<p></p>";
echo "<p align='right'><a href='$row[filenameBig]' target='_blank'>Click to view large image</a></p>";
echo "<hr size='1'>";
echo "<div style='padding-left:4px;' align='left'><strong>Booths Listing</strong>";
echo "<p></p>";
$query = "select boothAlias, totalDay from booths, eventinfo where booths.eventID=eventinfo.eventID && booths.eventID = ".$id."";
$_SESSION['EVENT_ID']=$id;
$result = mysql_query($query);
$result2= mysql_query($query);
echo "<table border='0' style='width:400px;table-layout:fixed' >";
$rows2 = mysql_fetch_array($result);
$Day=$rows2['totalDay'];
echo "<table>";
for ($day = 0; $day <= $Day; ++$day) {
if($day==0){
echo "<th>Booth</th>";
}else{
echo "<th>D".$day."</th>";
}
}
while($rows = mysql_fetch_array($result2)){
$boothAlias=$rows['boothAlias'];
$totalDay=$rows['totalDay'];
echo "<tr><td>$boothAlias</td>";
for ($day2 = 1; $day2 <= $totalDay; ++$day2) {
echo "<td><input name='day2[]' type='checkbox' value='$day2' /></td>";
}
echo "</tr>";
}
echo "</table>";
}
}
?>

Answer 1

I think that SET type would be good solution for this.
http://dev.mysql.com/doc/refman/5.0/en/set.html