An else statement allows you to define an alternative action to be taken when the condition in an if statement is false
Example-1
if ($totalqty == 0) {
echo "You did not order anything on the previous page!<br />";
} else {
echo htmlspecialchars($tireqty).' tires<br />';
echo htmlspecialchars($oilqty).' bottles of oil<br />';
echo htmlspecialchars($sparkqty).' spark plugs<br />';
}
Example-2
if ($totalqty == 0) {
echo "You did not order anything on the previous page!<br />";
} else {
if ($tireqty > 0)
echo htmlspecialchars($tireqty).' tires<br />';
if ($oilqty > 0)
echo htmlspecialchars($oilqty).' bottles of oil<br />';
if ($sparkqty > 0)
echo htmlspecialchars($sparkqty).' spark plugs<br />';
}