if I do the following code, can someone delete part of the form and still get this inserted as an empty value? Must I use empty as well or is isset alone good enough?
if (!isset($_GET[‘email’]) || !isset($_GET[‘userid’])) {
echo “”;
exit();
} else {
$email = strip_tags($_GET[‘email’]);
$username = strip_tags($_GET[‘userid’]);
if (!isset($_GET[‘email’]) || !isset($_GET[‘userid’])) {
echo “”;
exit();
}else{
if (empty($_GET[‘email’]) || empty($_GET[‘userid’])){
exit();
}else{
$email = strip_tags($_GET[‘email’]);
$username = strip_tags($_GET[‘userid’]);
//other codes
}
}
you can use both !isset and empty together for better result
3 Likes
Niekon
September 12, 2019, 10:57am
3
isset() checks if something exists or not.
empty() checks of it has a value.
If you don’t set the super global $_GET with an index of email and pass it through isset() and empty(), isset will return false as $_GET[‘email’] is not set, but empty() will throw an error of “not found”
2 Likes
I am still confused as to what is the difference between doing empty() and if($username === ‘’) {}; don’t they both do the same thing?
i think $username === ‘’ returns true for empty space too. but empty() doesn’t
So I guess it would be better to use empty() instead of that ===‘’?.. I guess I should be using all of them just to be safe?
btw it is Up to you to choose one since they’re same
system
Closed
November 11, 2019, 12:28pm
8
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