abs

(PHP 4, PHP 5, PHP 7)
Absolute value
number abs ( mixed $number )

Returns the absolute value of number.

Parameters:
number

The numeric value to process

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).

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

See also:

gmp_abs() -

gmp_sign() -

doc_php
2016-02-24 16:02:25
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