PHP Manual
Prev |  | Next

# abs

(PHP 3, PHP 4 )

abs -- Absolute value

## Description

mixed abs ( mixed number)

Returns the absolute value of `number`. If the argument `number` is of type float, the return type is also float, otherwise it is integer (as float usually has a bigger value range than integer).

Example 1. abs() example

    $abs = abs(-4.2); // $abs = 4.2; (double/float)
    $abs2 = abs(5);   // $abs2 = 5; (integer)
    $abs3 = abs(-5);  // $abs3 = 5; (integer)

Prev | Home | Next
Mathematical Functions | Up | acos