[php] PHP Convert String into Float/Double

I have list of string (size in bytes), I read those from file. Let say one of the string is 2968789218, but when I convert it to float it become 2.00.

This is my code so far :

$string = "2968789218";
$float = (float)$string;
//$float = floatval($string);
//the result is same
// result 2.00

Anyone?

Solved

The problem was actually the encoding. It's fine now when I change the file encoding :D

If the function floatval does not work you can try to make this :

    $string = "2968789218";
    $float = $string * 1.0;
    echo $float;

But for me all the previous answer worked ( try it in http://writecodeonline.com/php/ ) Maybe the problem is on your server ?

$float = floatval($string);

Ref : http://www.php.net/floatval

Try using

$string = "2968789218";
$float = (double)$string;