How can you round a number in PHP to only round up, not down?

When rounding a number in PHP, the built-in round() function will round a number up or down based on the decimal value. If you want to always round a number up, regardless of the decimal value, you can achieve this by using the ceil() function. ceil() will always round a number up to the nearest integer.

$number = 4.2;
$roundedNumber = ceil($number);
echo $roundedNumber; // Output will be 5