(PHP 4, PHP 5, PHP 7, PHP 8)
abs — Absolute value
numberThe 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 int (as float usually has a
bigger value range than int).
Example #1 abs() example
<?php
echo abs(-4.2); // 4.2 (double/float)
echo abs(5); // 5 (integer)
echo abs(-5); // 5 (integer)
?>