Add numbers

[ecabrera]

<?php

$add = "0.00000001";
$have = "0.00000006";

$have = $have + $add;

echo "$have";

?>

i get 7.0E-8 but i want to get .00000007  how do i do that

[Barand]

$add = "0.00000001";

$have = "0.00000006";


$have += $add;


echo number_format($have, ;   //--> 0.00000007

printf('%0.8f', $have);         //--> 0.00000007