Need one digit after decimal without changing any number

Question

I have a value 3.9609053497942. I need value 3.9 means only one value after decimal. I have used PHP number_format and round functions but it is giving me answer 4.

Answer 1

You could multiply the number by 10, floor() it, and then divide it back.

echo floor($value * 10) / 10;

Answer 2

Try with this,

echo intval((3.9609053497942*10))/10;

or

echo floor((3.9609053497942*10))/10;

Answer 3

There is so many possible solutions:

echo bcadd(3.9609053497942, 0, 1);

preg_match('/\d*\.\d/', 3.9609053497942, $matches);
echo $matches[0];

Answer 4

why not treat it as a string, like

$x = (string)3.96;
$y = explode(".",$x);
$result = $y[0] . "." . $y[1];

Answer 5

Did you tried like:

number_format(3.9609053497942, 1);