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PHP: abs() function

abs() function

The abs() function is used to get the absolute (positive) value of a given number.

Version:

(PHP 4 and above)

Syntax:

abs(number)

Parameter:

Name Description Required /
Optional
Type
number Numeric value. Required Float/integer

Return value:

The absolute value of number.

Value Type: Float/integer depends on the type of number.

PHP: Absolute Value Function (abs)

PHP: abs function

Example:

$val1=-14.2;
$val2= 15;
$val3= -55;
$abs1=abs($val1);
$abs2=abs($val2);
$abs3=abs($val3);
echo "absolute value of $val1 is $abs1<br />";
echo "absolute value of $val2 is $abs2<br />";
echo "absolute value of $val3 is $abs3<br />";
?>

Sample Output:

absolute value of -14.2 is 14.2 
absolute value of 15 is 15 
absolute value of -55 is 55

View the example in the browser

Pictorial Presentation :

php math abs() function

See also

PHP Function Reference

Previous: Installing and configuring PHP for Math functions
Next: acos



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https://w3resource.com/php/function-reference/abs.php