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PHP Math

~1 min read · PHP

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There are various built-in functions available for performing mathematical operations. Here's an overview of some of the common PHP math functions:

Function	Description	Example
pi()	Returns the value of π (Pi), which is approximately 3.1415926535898	echo(pi()) Try it yourself
min() and max()	Returns the smallest or largest value in an array or a set of values	echo min(1, 2, 3, 4); // 1 echo max(1, 2, 3, 4); // 4 Try it yourself
abs()	Returns the absolute value of a number	echo abs(-10); // 10 Try it yourself
pow()	Returns the base raised to the power of the exponent	echo pow(2, 3); // 8 Try it yourself
sqrt()	Returns the square root of a number	echo sqrt(16); // 4 Try it yourself
round()	Rounds a floating-point number	echo round(3.1459, 2); // 3.15 Try it yourself
floor()	Rounds a number down to the nearest integer	echo floor(3.9); // 3 Try it yourself
ceil()	Rounds a number up to the nearest integer	echo ceil(3.1); // 4 Try it yourself
rand()	Function generates a random number	echo rand(); // Random number Try it yourself

rand() function with parameters:

However, you can also specify a range for the random number by passing two arguments: a minimum and maximum value.

Syntax

rand(int $min = 0, int $max = getrandmax())

$min: The minimum number in the range (inclusive). If not provided, it defaults to 0.
$max: The maximum number in the range (inclusive). If not provided, it defaults to getrandmax() (the largest possible random value).

Example

<!DOCTYPE html>

<html>

<body>

<?php

echo rand(1, 100); // Random number between 1 and 100

</body>

</html>

Try it yourself