Description:
------------
I'm looking for a way to do:

$sql = CALL procedure(?,?,?);
$stmt = $con->prepare($sql);

$types = { "i", "i" , "i" };
$vars = { "var1", "var2", "var3" };

for ($i=0; $i<3; $i++) {
    $stmt->bind_param(types[$i],$$vars[$i]);
}

Note: Yes, I know bind_param() deprecated. stmt_bind_param() is the right way.

Reproduce code:
---------------
I can do:

$sql = CALL procedure(?,?,?);
$stmt = $con->prepare($sql);
$stmt->bind_param("iii", $var1, $var2, $var3);

But i can't do: -I get the error about not enought params for the procedure 3 expected 1 provided.-

$stmt->bind_param("i", $var1);
$stmt->bind_param("i", $var2);
$stmt->bind_param("i", $var3);