PHP Math Functions: Comprehensive Guide to Mathematical Operations

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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:

PHP pi() Function

pi() function returns the value of π (Pi), which is approximately 3.1415926535898.

Example

<!DOCTYPE html>

<html>

<body>

<?php

echo(pi());

</body>

</html>

Try it yourself

PHP min() and max() Functions

The min() and max() functions can be used to returns the smallest or largest value in an array or a set of values.

Example

<!DOCTYPE html>

<html>

<body>

<?php

echo min(1, 2, 3, 4); // 1

echo max(1, 2, 3, 4); // 4

</body>

</html>

Try it yourself

PHP abs() Function

The abs() function returns the absolute value of a number.

Example

<!DOCTYPE html>

<html>

<body>

<?php

echo abs(-10); // 10

</body>

</html>

Try it yourself

PHP pow() Function

The pow() function returns the base raised to the power of the exponent.

Example

<!DOCTYPE html>

<html>

<body>

<?php

echo pow(2, 3); // 8

</body>

</html>

Try it yourself

PHP sqrt() Function

The sqrt() function returns the square root of a number..

Example

<!DOCTYPE html>

<html>

<body>

<?php

echo sqrt(16); // 4

</body>

</html>

Try it yourself

PHP round() Function

The round() function rounds a floating-point number.

Example

<!DOCTYPE html>

<html>

<body>

<?php

echo round(3.1459, 2); // 3.15

</body>

</html>

Try it yourself

PHP floor() Function

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

Example

<!DOCTYPE html>

<html>

<body>

<?php

echo floor(3.9); // 3

</body>

</html>

Try it yourself

PHP ceil() Function

The ceil() function rounds a number up to the nearest integer.

Example

<!DOCTYPE html>

<html>

<body>

<?php

echo ceil(3.1); // 4

</body>

</html>

Try it yourself

PHP rand() Function

The rand() function generates a random number.

Example

<!DOCTYPE html>

<html>

<body>

<?php

echo rand(); // Random number

</body>

</html>

Try it yourself

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

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