(PHP 4, PHP 5)
abs — Absolute value
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)
?>