Funcții matematice
PHP Manual

abs

(PHP 4, PHP 5, PHP 7)

absAbsolute value

Descrierea

number abs ( mixed $number )

Returns the absolute value of number.

Parametri

number

The numeric value to process

Valorile întoarse

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).

Exemple

Example #1 abs() example

<?php
echo abs(-4.2); // 4.2 (double/float)
echo abs(5);    // 5 (integer)
echo abs(-5);   // 5 (integer)
?>

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Funcții matematice
PHP Manual