Question

I have a class called Plato that extends Producto witch contains de atribute precio. The setter is defined here:

public function setPrecio(\double $precio)
{
   $this->precio = $precio;

   return $this;
}

And I trying to add a new element to the DB with:

$plato = new Plato; 
$em = $this->getEntityManager();
 // I have tryed this three ways to insert
$plato->SetPrecio(doubleval($precio));  
$plato->SetPrecio((double) 2);
$plato->SetPrecio(2.0);

$em->flush();

It gives me the following error message:

Catchable Fatal Error: Argument 1 passed to
Servinow\EntitiesBundle\Entity\Producto::setPrecio() must be an
instance of double, double given, called in
/Users/luis/git/servinowServer-luis/src/Servinow/EntitiesBundle/Entity/PlatoRepository.php
on line 41 and defined in
/Users/luis/git/servinowServer-luis/src/Servinow/EntitiesBundle/Entity/Producto.php
line 169

Answer 1

Modify setPrecio() function in that way

public function setPrecio($precio)
{
   $this->precio = $precio;

   return $this;
}

You could use something like that

gettype($precio)[...];
if(is_numeric($precio))[...];

for type control, before set it into $this

Remember that

Type Hints can only be of the object and array (since PHP 5.1) type.
Traditional type hinting with int and string isn’t supported.