PHP | floatval() Function

The floatval() function is an inbuilt function in PHP which returns the float value of a variable.

Syntax:

float floatval ( $var )

Parameters: This function accepts one parameter which is mandatory and described below:

• $var: The variable whose corresponding float value will be returned. This variable should not be an object.

Return Value: It returns float value of given variable. Empty array returns 0 and non-empty array returns 1.

Note: If an object is passed to the function, it produce an E_NOTICE level error and return 1.

Examples:

Input : $var = '41.68127E3'
Output : 41681.27

Input : $var = '47.129mln'
Output : 47.129

Below programs illustrate the use of floatval() function in PHP:
Program 1:

<?php
$var = '41.68127E3';
$float_value = floatval($var);
echo $float_value;
?>

Output:

41681.27

Program 2:

<?php
$var = '47.129mln';
$float_value = floatval($var);
echo $float_value;
?>

Output:

47.129

Reference: http://php.net/manual/en/function.floatval.php