PHP save data in sql in multiform - php

Question

I'm using a multiform PHP script given here. It is basically a kind of form completion in multiple steps on the same page. I'm just a beginner in PHP, so I was taking idea from this script.
What I failed to understand is: "How to store the data input by the user in SQL tables?

Answer 1

In the save function, instead of saving data into the $_SESSION (here: $_SESSION[$step][$key] = $val;), save it your SQL database.
But be careful. You will have to update the script to retrieve information from the database instead of from the $_SESSION when you set the value in each input tag.
edit:
The save function is where you will store each data input from user. Instead of :
function save($step, $data) {
//$_SESSION[$step] = $data;
$fields = explode('&',$data);
foreach ($fields as $field) {
$keyVal = explode('=', $field);
$key = urldecode($keyVal[0]);
$val = urldecode($keyVal[1]);
$_SESSION[$step][$key] = $val;
}
}
You should have something like that (the sql queries aren't good, it's just an example):
function save($step, $data)
{
//$_SESSION[$step] = $data;
$fields = explode('&',$data);
$sql = "INSERT INTO `ma_table` (`step`, `key`, `val`) VALUES ";
foreach ($fields as $field)
{
$keyVal = explode('=', $field);
$key = mysql_real_escape_string($keyVal[0]);
$val = mysql_real_escape_string($keyVal[1]);
$sql .= "('" . $step . "', '" . $key . "', '" . $val . "')";
}
mysql_query($sql);
}