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I got a text box called policy_number. If this is left empty on submission the data won't be sent is the idea.

But this doesn't work. What is wrong here?

        <label>Polisenummer:</label>
        <input type="text" class="w3-input w3-border" name="boat[policy_number]">

This is the PHP script for check:

<?php
$policy_number= $_POST['policy_number'];
$submitbutton= $_POST['submit'];
if ($submitbutton){
if (empty($policy_number)) {
echo 'Du må fylle inn et polisenummer.';
}
else {
echo 'Du har fylt ut polisenummer: ' . $fpolicy_number;
}
}
?>

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Small bit of code but several issues with it.

  1. Do not create variables for nothing. You already have the POST variables, just use them
  2. You need to check the REQUEST METHOD, not the name of a button. This can completely fail in certain cases. Also, in a properly coded form, ALL form elements save for checkboxes will be submitted (true)
  3. A blank space will get past your empty check. You need to trim the entire POST array all at once and THEN check for empty
  4. Never ever trust user supplied data. The code is vulnerable to an XSS Attack

 

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His boat club registration form has two sections

  • You
  • Your boat

So, in theory, after validating and preparing two insert queries, you can

$member_insert->execute($_POST['member']);
$boat_insert->execute($_POST['boat']);

 

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10 hours ago, Barand said:

His boat club registration form has two sections

  • You
  • Your boat

So, in theory, after validating and preparing two insert queries, you can

$member_insert->execute($_POST['member']);
$boat_insert->execute($_POST['boat']);

 

Now some peace's fell into place

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On 8/27/2022 at 1:24 AM, benanamen said:

Small bit of code but several issues with it.

  1. Do not create variables for nothing. You already have the POST variables, just use them
  2. You need to check the REQUEST METHOD, not the name of a button. This can completely fail in certain cases. Also, in a properly coded form, ALL form elements save for checkboxes will be submitted (true)
  3. A blank space will get past your empty check. You need to trim the entire POST array all at once and THEN check for empty
  4. Never ever trust user supplied data. The code is vulnerable to an XSS Attack

 

 

The script was developed by Barand, and this was probably not the way he set it up in the first place when he developed it for me. I managed quite amazingly to sort of wipe it out when I had to familiarize myself with how it worked in relation to where everything was. Long story short. I was a little too smart-ass when I started on this and didn't back up the original files. Therefore, over time I have spent a lot of time getting it back to where I have come with it now. I have restored it from fragments and differently read solutions online and in books. Therefore, such moments of irritation as you experience can occur. I am sorry for that and apologize for it. What's important for me now is to get it 100% back up and running. Next is to clean it up so you don't have to worry about cosmetic errors anymore.

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