PHP and SQL Save checkboxes as array - php

Question

I have written the below to read in data from a radio button (var1) and some checkboxes (var2)
require('config.php');
$con = mysql_connect("localhost", $db_username, $db_password);
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db($db_name, $con);
$var1 = $_GET['var1'];
$var1 = mysql_real_escape_string( $var1 );
$var2 = $_GET['var2'];
$var2 = mysql_real_escape_string( $var2 );
$running_total = 0;
$last_update = "SELECT * FROM $db_tablename ORDER BY id DESC LIMIT 1";
$result = mysql_query($last_update);
$insert_query = "INSERT INTO $db_tablename (var1, var2) ";
$insert_query .= sprintf( "VALUES('%s', '%s')", $var1, $var2);
$insert_result = mysql_query($insert_query);
if(!$insert_result) {
die('insert query failed' . mysql_error());
}
mysql_close($con)
The input html looks like...
<input type="radio" name="var1" value="value1">Test 1</input>
<input type="radio" name="var1" value="value2">Test 2</input>
<input type="radio" name="var1" value="value3">Test 3</input>
<input type="radio" name="var1" value="value4">Test 4</input>
<input type="checkbox" name="var2" value="checkbox1">CB 1</input>
<input type="checkbox" name="var2" value="checkbox2">CB 1</input>
<input type="checkbox" name="var2" value="checkbox3">CB 1</input>
<input type="checkbox" name="var2" value="checkbox4">CB 1</input>
Everything works as expected and but as var2 allows for multiple checkboxes to be selected I would like to save multiple values. I realise I need to do this as an array but I cant work it out.
Can anyone help or have a solution or example they can point me to?

Answer 1

it would be var2[] as the name and view the results as
foreach($_POST['var2'] as $checkedItem)
{
echo $checkedItem;
}

Answer 2

The html:
`
<input type="radio" name="var1" value="value1">Test 1</input>
<input type="radio" name="var1" value="value2">Test 2</input>
<input type="checkbox" name="var2[]" value="check" /> CB 1
<input type="checkbox" name="var2[]" value="check" /> CB 2
`
and the SQL :
Array $_POST['var2'] contains the checkboxes.

Answer 3

Change the name of var1 to "var1[]", and change the name of var2 to "var2[]"...
$var1 = $_GET['var1'];
$var2 = $_GET['var2'];
echo count($var1);
echo count($var2);
Gl mf