The ceil() function Returns an integer that is the next larger than the float used as the argument. In essence, it rounds up a floating-point number to an integer, no matter what the value of the floating-point integer is. It doesn’t round down.
Example#1 ceil() example

< ?php
echo ceil(4.3); // 5
echo ceil(9.999); // 10
echo ceil(-3.14); // -3
?>

Returns
Integer [...]