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(PHP 3, PHP 4, PHP 5)

abs -- Absolute value

Description

number abs ( mixed number )

Returns 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)
?>