What function does php use to round up?

In PHP, generally speaking, if you need to round up, use the ceil() function.

Grammar

ceil(x)

Instructions(recommended learning:PHP Programming from Beginner to Master)

Returns the next integer that is not less than x. If x has a decimal part, it will be rounded up by one. The type returned by ceil() is still float because the range of float values ​​is usually larger than that of integer.

Example

In this example, we will apply the ceil() function to different values:

<?php
echo(ceil(0.60);
echo(ceil(0.40);
echo(ceil(5);
echo(ceil(5.1);
echo(ceil(-5.1);
echo(ceil(-5.9));
?>

Output:

1
1
5
6
-5
-5

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