Booleans not working correctly [closed] - php

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Programming a function to see if a user is 'active' or not.
function user_active($username) {
$username = sanitize($username);
$query = mysqli_query($_POST['x'], "SELECT * FROM users");
$row = mysqli_fetch_array($query);
if ($row['username'] === $username and $row['active'] === 1) {
return true;
} else {
return false;
}
}
and then....
if (user_active($username) === false) {
$errors[] = 'You have not activated your account. Please check your
email to activate your account.';
It only works when I test against $username but when I include $row['active'] === 1 it stops working.

Answer 1

=== checks for an identical match, meaning
$x === 1
will check if $x is an integer with the value of 1.
== checks for equality in the value only, so
$x == 1
will check if $x has a value of 1, whether it is a string or integer or something else, like a boolean true.
Try changing your statement to
$row['active'] == 1
or, if you know your variable is a string,
$row['active'] === '1'
Reference:
$a == $b....Equal....TRUE if $a is equal to $b after type juggling.
$a === $b....Identical....TRUE if $a is equal to $b, and they are of the same type.
http://php.net/manual/en/language.operators.comparison.php

Answer 2

Try this
The difference between == and === is
'===' check for equality between left side and right side with datatype too when comparing using '===' if data type is not equal then it returns false.
function user_active($username) {
$username = sanitize($username);
$query = mysqli_query($_POST['x'], "SELECT * FROM users");
$row = mysqli_fetch_array($query);
if ($row['username'] === $username and $row['active'] == 1) {
return true;
} else {
return false;
}
}