(PHP 4, PHP 5)
abs — Absolute value
number
The numeric value to process
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
<?php
$abs = abs(-4.2); // $abs = 4.2; (double/float)
$abs2 = abs(5); // $abs2 = 5; (integer)
$abs3 = abs(-5); // $abs3 = 5; (integer)
?>