How to realize downward rounding by using floor () function in PHP

This article will explain in detail how PHP uses the floor () function to achieve downward rounding. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

Floor: round down

The floor () function rounds down to the nearest integer.

Syntax: floor (x)

Parameters.

X must. The number that is required to be rounded.

Description: returns the next integer not greater than x, rounding off the fractional part of x. The type returned by floor () is still float, because the range of float values is usually larger than integer.

Example:

Output:

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