abs — Returns the absolute value of an integer or
mixed num: Number from which
to get absolute value
Absolute value of an integer
The abs() function returns the absolute value of
the passed variable. The absolute value of a number is
the value without regard to positive or negative
notation. This can be an integer or a floating-point
number; abs() returns the same type that was
passed to it.
Example 660. Calculate the
absolute value of a number
$int = -123.450;
echo "The absolute value of $int is ", abs($int);
PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing
(Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch).
This material may be distributed only subject to the terms and conditions set forth
in the Open Publication License, v1.0 or later (the latest version is presently available at
The authors of this book have elected not to choose any options under the OPL. This online book was obtained
and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4
for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All
persons and entities shall have neither liability nor responsibility to any person or entity with respect to
any loss or damage arising from the information contained in this book.