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PHP | floatval() Function

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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

Last Updated : 25 Jun, 2018
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