Insert data in multiple tables if a checkbox is checked - php

Question

I am creating a user registration form with simple requirements.and insert data with simple query
<?php
if (isset($_POST) && isset($_POST["form_register"]))
{
$insert_query = "INSERT INTO users SET
users.first_name='" . mysql_real_escape_string($_POST['fname']) . "',
users.last_name='" . mysql_real_escape_string($_POST['lname']) . "',
users.email='" . mysql_real_escape_string($_POST['email']) . "',
users.password='" . mysql_real_escape_string($_POST['password']) . "';";
if (mysql_query($insert_query))
{
$_SESSION['messageType'] = "success_msg";
}
else
{
$_SESSION['message'] = "-Registration not Successful.";
$_SESSION['messageType'] = "error_msg";
}
}
?>
but now I have 3 extra fields in this form. If I select a checkbox then the other 2 field data go in another table with having this data also. how can i do that?
It is my old code...now I add 3 new columns, 1 checkbox and 2 text boxes.
The query is, if checkbox is selected then other 2 colums values go in another table and if checkbox is not select then working 1 query.

Answer 1

If I understand right you want to insert data in another table IF user check the checkbox.
So you have to use another IF like this:
if (mysql_query($insert_query))
{
if (/* here your condition for checkbox*/)
{
/* here your query for the secund table and the new two values*/
}
$_SESSION['messageType'] = "success_msg";
}
Note that is extremely important you run the secund query after the success of the first, cause if the first fails for some reason, secund will not be executed.

Answer 2

We really need to see your form as what you're providing us is way too vague, also, check the ending syntax for your $insert_query.
If I comprehended the question right, the final code should look something like this.
Tell me if I'm wrong
<?php
if(isset($_POST) && isset ($_POST["form_register"])){
$insert_query1 = "INSERT INTO users SET
first_name='".mysql_real_escape_string($_POST['fname'])."',
last_name='".mysql_real_escape_string($_POST['lname'])."',
email='".mysql_real_escape_string($_POST['email'])."',
password='".mysql_real_escape_string($_POST['password'])."'";
if(mysql_query($insert_query)){
$_SESSION['messageType'] = "success_msg";
} else {
$_SESSION['message'] = "-Registration not Successful.";
$_SESSION['messageType'] = "error_msg";
}
if($_POST['checkbox']) {
$insert_query2 = ""; //Put your second MYSQL Query here
}
if(mysql_query($insert_query2)){
$_SESSION['messageType2'] = "success_msg";
} else {
$_SESSION['message2'] = "-Registration not Successful.";
$_SESSION['messageType2'] = "error_msg";
}
}
?>