44 PHP Math Functions & Examples That Will Save You Time

1. Absolute Value: abs()

This function returns the absolute value of a number.

Example:

<?php

$number = –5;

$absoluteValue = abs($number);

echo “Absolute Value: $absoluteValue”;

?>

Output:

Absolute Value: 5

2. Maximum: max()

This function returns the highest value from a list of numbers.

Example:

<?php

$numbers = [12, 7, 25, 8, 14];

$maximum = max($numbers);

echo “Maximum Value: $maximum”;

?>

Output:

Maximum Value: 25

3. Minimum: min()

This function returns the lowest value from a list of numbers.

Example:

<?php

$numbers = [12, 7, 25, 8, 14];

$minimum = min($numbers);

echo “Minimum Value: $minimum”;

?>

Output:

Minimum Value: 7

4. Round-Up: ceil()

This function rounds a number up to the nearest integer.

Example:

<?php

$number = 6.25;

$roundedUp = ceil($number);

echo “Rounded Up: $roundedUp”;

?>

Output:

Rounded Up: 7

5. Round Down: floor()

This function rounds a number down to the nearest integer.

Example:

<?php

$number = 6.75;

$roundedDown = floor($number);

echo “Rounded Down: $roundedDown”;

?>

Output:

Rounded Down: 6

6. Cosine: cos()

This function returns the cosine of an angle in radians.

Example:

<?php

$angle = pi() / 3; // 60 degrees in radians 

$cosineValue = cos($angle);

echo “Cosine Value: $cosineValue”;

?>

Output:

Cosine Value: 0.5

7. Hyperbolic Cosine: cosh()

This function returns the hyperbolic cosine of a number.

Example:

<?php

$number = 2;

$hyperbolicCosine = cosh($number);

echo “Hyperbolic Cosine: $hyperbolicCosine”;

?>

Output:

Hyperbolic Cosine: 3.7621956910836

8. Arc Cosine: acos()

This function returns the arc cosine of a number.

Example:

<?php

$value = 0.5;

$arcCosine = acos($value);

echo “Arc Cosine: $arcCosine”;

?>

Output:

Arc Cosine: 1.0471975511966

9. Inverse Hyperbolic Cosie: acosh()

This function returns the inverse hyperbolic cosine of a number.

Example:

<?php

$number = 3.7621956910836;

$inverseHyperbolicCosine = acosh($number);

echo “Inverse Hyperbolic Cosine: $inverseHyperbolicCosine”;

?>

Output:

Inverse Hyperbolic Cosine: 2

10. Sine: sin()

This function returns the sine of an angle in radians.

Example:

<?php

$angle = pi() / 6; // 30 degrees in radians 

$sineValue = sin($angle);

echo “Sine Value: $sineValue”;

?>

Output:

Sine Value: 0.5

11. Hyperbolic Sine: sinh()

This function returns the hyperbolic sine of a number.

Example:

<?php

$number = 2;

$hyperbolicSine = sinh($number);

echo “Hyperbolic Sine: $hyperbolicSine”;

?>

Output:

Hyperbolic Sine: 3.626860407847

12. Arc Sine: asin()

This function returns the arc sine of a number.

Example:

<?php

$value = 0.5;

$arcSine = asin($value);

echo “Arc Sine: $arcSine”;

?>

Output:

Arc Sine: 0.5235987755983

13. Inverse Hyperbolic Sine: asinh()

This function returns the arc sine of a number.

Example:

<?php

$value = 0.5;

$arcSine = asin($value);

echo “Arc Sine: $arcSine”;

?>

Output:

Arc Sine: 0.5235987755983

14. Tangent: tan()

This function returns the tangent of an angle in radians.

Example:

<?php

$angle = pi() / 4; // 45 degrees in radians 

$tangentValue = tan($angle);

echo “Tangent Value: $tangentValue”;

?>

Output:

Tangent Value: 1

15. Hyperbolic Tangent: tanh()

This function returns the hyperbolic tangent of a number.

Example:

<?php

$number = 1;

$hyperbolicTangent = tanh($number);

echo “Hyperbolic Tangent: $hyperbolicTangent”;

?>

Output:

Hyperbolic Tangent: 0.76159415595576

16. Arc Tangent: atan()

This function returns the arc tangent of a number.

Example:

<?php

$value = 1;

$arcTangent = atan($value);

echo “Arc Tangent: $arcTangent”;

?>

Output:

Arc Tangent: 0.78539816339745

17. Two Variable Arc Tangent: atan2()

This function returns the arc tangent of two variables.

Example:

<?php

$y = 1;

$x = 1;

$arcTangent = atan2($y, $x);

echo “Arc Tangent: $arcTangent”;

?>

Output:

Arc Tangent: 0.78539816339745

18. Inverse Hyperbolic Tangent: atanh()

This function returns the inverse hyperbolic tangent of a number.

Example:

<?php

$number = 0.76159415595576;

$inverseHyperbolicTangent = atanh($number);

echo “Inverse Hyperbolic Tangent: $inverseHyperbolicTangent”;

?>

Output:

Inverse Hyperbolic Tangent: 0.99999999999999

19. Degree to Radians: deg2rad()

This function converts degrees to radians.

Example:

<?php

$degrees = 90;

$radians = deg2rad($degrees);

echo “Radians: $radians”;

?>

Output:

Radians: 1.5707963267949

20. Random Numer: rand()

This function generates a random number.

Example:

<?php

$randomNumber = rand(1, 100);

echo “Random Number: $randomNumber”;

?>

Output:

Random Number: 12

21. Integer Division: intdiv()

This function performs integer division.

Example:

<?php

$numerator = 10;

$denominator = 3;

$result = intdiv($numerator, $denominator);

echo “Integer Division Result: $result”;

?>

Output:

Integer Division Result: 3

22. Is Finite: is_finite()

This function checks if a value is a finite number.

Example:

<?php

$value = 5;

$isFinite = is_finite($value);

echo “Is Finite: “ . ($isFinite ? “Yes” : “No”);

?>

Output:

Is Finite: Yes

23. Is Infinite: is_infinite()

This function checks if a value is positive or negative infinity.

Example:

<?php

$value = INF; // Positive infinity 

$isInfinite = is_infinite($value);

echo “Is Infinite: “ . ($isInfinite ? “Yes” : “No”);

?>

Output:

Integer Division Result: 3

24. Not a Number: is_nan()

This function checks if a value is NaN (Not-a-Number).

Example:

<?php

$value = acos(1.5); // acos of a value greater than 1 is NaN 

$isNaN = is_nan($value);

echo “Is NaN: “ . ($isNaN ? “Yes” : “No”);

?>

Output:

Is NaN: Yes

25. Power: pow()

This function returns a number raised to a power.

Example:

<?php

$base = 2;

$exponent = 3;

$result = pow($base, $exponent);

echo “2^3: $result”;

?>

Output:

2^3: 8

26. Natural Logarithm: log()

This function returns the natural logarithm of a number.

Example:

<?php

$number = 10;

$logarithm = log($number);

echo “Natural Logarithm: $logarithm”;

?>

Output:

Natural Logarithm: 2.302585092994

27. Base-10 Logarithm: log10()

This function returns the base-10 logarithm of a number.

Example:

<?php

$number = 100;

$logarithm = log10($number);

echo “Base-10 Logarithm: $logarithm”;

?>

Output:

Base-10 Logarithm: 2

28. Natural Logarithm + 1: log1p()

This function returns the natural logarithm of 1 plus a number.

Example:

<?php

$number = 1;

$logarithm = log1p($number);

echo “Natural Logarithm of (1 + 1): $logarithm”;

?>

Output:

Natural Logarithm of (1 + 1): 0.69314718055995

29. Base Convert: base_convert()

This function converts a number between different number bases.

Example:

<?php

$number = “1010”;

$fromBase = 2;

$toBase = 10;

$converted = base_convert($number, $fromBase, $toBase);

echo “Converted: $converted”;

?>

Output:

Converted: 10

30. e Raised to a Power: exp()

This function returns the value of e raised to a power.

Example:

<?php

$exponent = 1;

$result = exp($exponent);

echo “e^1: $result”;

?>

Output:

e^1: 2.718281828459

31. e Raised to a Power -1: expm1()

This function returns e raised to a power minus one.

Example:

<?php

$exponent = 1;

$result = exp($exponent);

echo “e^1: $result”;

?>

Output:

e^1: 2.718281828459

32. Radian to Degrees: rad2deg()

This function converts radians to degrees.

Example:

<?php

$radians = 1.5707963267949; // Pi/2 radians 

$degrees = rad2deg($radians);

echo “Degrees: $degrees”;

?>

Output:

Degrees: 90

33. Decimal to Binary: decbin()

This function converts decimals to binary values.

Example:

<?php

$decimalNumber = 10;

$binaryNumber = decbin($decimalNumber);

echo “Binary: $binaryNumber”;

?>

Output:

Binary: 1010

34. Binary to Decimal: bindec()

This function converts binary values to decimals.

Example:

<?php

$binaryNumber = “1010”;

$decimalNumber = bindec($binaryNumber);

echo “Decimal: $decimalNumber”;

?>

Output:

Decimal: 10

35. Decimal to Hexadecimal: dechex()

This function converts a decimal number to hexadecimal.

Example:

<?php

$decimalNumber = 255;

$hexadecimalNumber = dechex($decimalNumber);

echo “Hexadecimal: $hexadecimalNumber”;

?>

Output:

Hexadecimal: ff

36. Decimal to Octal: decoct()

This function converts a decimal number to an octal.

Example:

<?php

$decimalNumber = 64;

$octalNumber = decoct($decimalNumber);

echo “Octal: $octalNumber”;

?>

Output:

Octal: 100

37. Largest Random Value: getrandmax()

This function returns the largest possible random value.

Example:

<?php

$maxRandomValue = getrandmax();

echo “Max Random Value: $maxRandomValue”;

?>

Output:

Max Random Value: 2147483647

38. Random Number Generator: mt_rand()

This function generates a random number using the Mersenne Twister algorithm. It allows you to generate random integers within a specified range.

Example:

<?php

$min = 10;

$max = 50;

$randomNumber = mt_rand($min, $max);

echo “Random Number between $min and $max: $randomNumber”;

?>

Output:

Random Number between 10 and 50: 42

39. Maximum Random Value: mt_getrandmax()

This function returns the maximum random value from the mt_rand() function.

Example:

<?php

$maxRandomValue = getrandmax();

echo “Max Random Value: $maxRandomValue”;

?>

Output:

Max Random Value: 2147483647

40. Hypotenuse: hypot()

This function calculates the length of the hypotenuse of a right-angle triangle.

Example:

<?php

$side1 = 3;

$side2 = 4;

$hypotenuse = hypot($side1, $side2);

echo “Hypotenuse: $hypotenuse”;

?>

Output:

Hypotenuse: 5

41. Pi Function: pi()

This function returns the value of pi (π).

Example:

<?php

$piValue = pi();

echo “Value of Pi: $piValue”;

?>

Output:

Value of Pi: 3.1415926535898

42. Square Root: sqrt()

This function returns the square root of a number.

Example:

<?php

$number = 25;

$squareRoot = sqrt($number);

echo “Square Root: $squareRoot”;

?>

Output:

Square Root: 5

43. Remainder: fmod()

This function returns the remainder of dividing two numbers.

Example:

<?php

$dividend = 10;

$divisor = 3;

$remainder = fmod($dividend, $divisor);

echo “Remainder: $remainder”;

?>

Output:

Remainder: 1

44. Hexadecimal Value: hexdec()

This function converts a hexadecimal number to its decimal equivalent.

Example:

<?php

$hexadecimalNumber = “1A”; // Hexadecimal for 26 

$decimalNumber = hexdec($hexadecimalNumber);

echo “Decimal: $decimalNumber”;

?>

Output:

Decimal: 26

Performing Calculations With PHP Math Functions