Definition: The absolute value of a number is the distance between the number and 0, and is always a positive number. In math it is usually depicted as two vertical lines like this: |X| (the absolute value of X.) In PHP we use the Abs () function to get this value.
Also Known As: Absolute Value Function
<?php abs (-6) ; //returns a value of 6 abs (12.4) ; //returns a value of 12.4 abs (-456.2) ; // returns a value of 456.2 ?>