[RESOLVED] error checking on check box

[Dada78]

Hello, I have a question that I am curious about. I have a registration for that I had error checking on to where if a user doesn't fill in a box it will show a error that the question must be filled in. At the bottom of the page I have a checkbox with "Yes, I have read and understand the Terms & Conditions." I want them to have at least check the box as well before they can continue. Now I know how to do it for the form. Is it the same way from this as well. I don't want it to be entered into the DB so I am not sure how to do a error check on the box without going into the DB.

Here is the page with the error output.
http://www.texascaching.com/index.php?page=register

Here is the part of the script at interest

// Define post fields into simple variables
$first_name = $_POST['first_name'];
$last_name = $_POST['last_name'];
$email_address = $_POST['email_address'];
$username = $_POST['username'];
$city = $_POST['city'];
$zipcode = $_POST['zipcode'];
$info = $_POST['info'];

/* Let's strip some slashes in case the user entered
any escaped characters. */

$first_name = stripslashes($first_name);
$last_name = stripslashes($last_name);
$email_address = stripslashes($email_address);
$username = stripslashes($username);
$city = stripslashes($city);
$zipcode = stripslashes($zipcode);
$info = stripslashes($info); ?>

 <!--ERROR TABLE-->
<table class='fullbox' width='500' height='105' align='center'>
    <tr>
      <td>
<?
/* Do some error checking on the form posted fields */

if((!$first_name) || (!$last_name) || (!$email_address) ||  (!$city) || (!$zipcode) || (!$username)){
    echo '<h1>You did not submit the following required information! </h1><br />';
    if(!$first_name){
        echo "<font class='errortext'>*First Name* is a required field. Please enter it below. <br />";
    }
    if(!$last_name){
        echo "*Last Name* is a required field. Please enter it below.<br />";
    }
    if(!$email_address){
        echo "*Email Address* is a required field. Please enter it below.<br />";
    }
    if(!$username){
        echo "*Desired Username* is a required field. Please enter it below.<br />";
    }
    if(!$city){
        echo "*City* is a required field. Please enter it below.<br />";
    }
    if(!$zipcode){
        echo "*Zipcode* is a required field. Please enter it below.<br />";
    }
?>
</td>      

         </tr>
       </table>
<br />
<?
    include 'register_form.php'; // Show the form again!
    /* End the error checking and if everything is ok, we'll move on to

-Thanks

[devinemke]

unchecked checkboxes are not returned in the POST data. simply use [man]isset[/man] to see if it's set or not and echo an error if it's not.

[Dada78]

Ok thanks. I am familiar with echoing the a error which I have set that up. I read the page in the isset but not real sure how to set that up.

Would it be like this.

$var = 'checkbox';

// Lets check that they accept the terms.
if (isset($var)) {
   echo 'You must accept the Terms & Conditions.';
}

Thanks

[leatherback]

Well, it is posted, like all the other vars, so..

if(isset($_POST['var']))
{
//error
}

[Dada78]

This doesn't need to be posted to the database though. It just need to check that the box has been checked. So I am kinda confused now since it contridicts the previous reply. I am still learning PHP but trying so I am not sure what you are telling me.

-Thanks

[devinemke]

a simple example:

<?php
if (!isset($_POST['submit']))
{
	echo '
	<form action="" method="POST">
	<input type="checkbox" name="terms" value="Y">Yes, I have read and understand the Terms &amp; Conditions<br> 
	<input type="submit" name="submit" value="submit">
	</form>
	';
}
else
{
	if (isset($_POST['terms'])) {echo 'thank you';}
	else {echo 'you did not accept the Terms &amp; Conditions';}
}
?>

[Dada78]

That helps a little bit but I am still a little lost since my PHP isn't embeded with my HTML. I Have already have the echo statement wrote in with the rest of my error checking echos.

/* Do some error checking on the form posted fields */

if((!$first_name) || (!$last_name) || (!$email_address) ||  (!$city) || (!$zipcode) ||  (!$checkbox) || (!$cords) || (!$username)){
    echo '<h1>You did not submit the following required information! </h1><br />';
    if(!$first_name){
        echo "<font class='errortext'>*First Name* is a required field. Please enter it below. <br />";
    }
    if(!$last_name){
        echo "*Last Name* is a required field. Please enter it below.<br />";
    }
    if(!$email_address){
        echo "*Email Address* is a required field. Please enter it below.<br />";
    }
    if(!$username){
        echo "*Desired Username* is a required field. Please enter it below.<br />";
    }
    if(!$city){
        echo "*City* is a required field. Please enter it below.<br />";
    }
    if(!$zipcode){
        echo "*Zipcode* is a required field. Please enter it below.<br />";
    }
     if(!$cords){
        echo "*You must set your Home Coordinates*.<br />";
    }
     if(!$checkbox){
        echo "*You must accept the Terms & Conditions*.<br />";
    }
?>

Here's the form that is on the page with the registeration

<td width="599" height="30">
<font class="contenttext"><INPUT TYPE="checkbox" NAME="terms" VALUE="Y">&nbsp;Yes, I have read and understand the <a href='?page=development' style='text-decoration:underline'>Terms & Conditions.</td>

So in my php code above would I just need to replace checkbox with terms? I am just a little lost on how to plug this in with what I already have as I want to keep the same layout as I have to make things easy to read etc.

-Thanks

[Dada78]

Ok this is what I have come up with, would this be correct?

/* Do some error checking on the form posted fields */


if((!$first_name) || (!$last_name) || (!$email_address) ||  (!$city) || (!$zipcode)  || (!$cords) || (!$username)){
    echo '<h1>You did not submit the following required information! </h1><br />';
    if(!$first_name){
        echo "<font class='errortext'>*First Name* is a required field. Please enter it below. <br />";
    }
    if(!$last_name){
        echo "*Last Name* is a required field. Please enter it below.<br />";
    }
    if(!$email_address){
        echo "*Email Address* is a required field. Please enter it below.<br />";
    }
    if(!$username){
        echo "*Desired Username* is a required field. Please enter it below.<br />";
    }
    if(!$city){
        echo "*City* is a required field. Please enter it below.<br />";
    }
    if(!$zipcode){
        echo "*Zipcode* is a required field. Please enter it below.<br />";
    }
     if(!$cords){
        echo "*You must set your Home Coordinates*.<br />";
    }
     if (!isset($_POST['submit']))

else
{
    if (isset($_POST['terms']));
    else {echo '<font class='errortext'>*You must accept the Terms & Conditions*';}
} 
?>

-Thanks

[devinemke]

change this:

if(!$checkbox){ 
        echo "*You must accept the Terms & Conditions*.<br />"; 
    }

to this:

if (!isset($_POST['terms']))
{
	echo '*You must accept the Terms & Conditions*.<br />';
}

[Dada78]

Thanks for all the help, it's working great now.

-Thanks again.