How can variables like $ugesamt and $ulaenge be properly initialized to avoid division errors in PHP?

To avoid division errors in PHP, variables like $ugesamt and $ulaenge should be properly initialized with default values before performing any division operations. This can be done by setting them to 0 or any other appropriate initial value to prevent division by zero errors.

$ugesamt = 0;
$ulaenge = 0;

// Perform division operation
if ($ulaenge != 0) {
    $result = $ugesamt / $ulaenge;
} else {
    echo "Division by zero error!";
}