Warning: number_format() expects parameter 1 to be double, string given [closed]

Answer 1

$fields['price']='8, 9858';
echo number_format((float)$fields['price']);

use (float) to parse correct way

Answer 2

fix it with define other variabel.

$tot=$row['total'];
$total=number_format($tot,2);

$tot2=$tot*1;
$vat=number_format($tot2*10/100,2);

maybe help

Answer 3

You should check what value is inside $fields['price'].

Just do:

var_dump($fields['price']);

It's possible you have some spaces or , instead of .