HELP ABOUT ARRAY

[Anon]

I want to clear an array.
how can I do?

thanks

[Anon]

$my_array = array ();

See http://php.net/manual/language.types.array.php for more info.

[Anon]

and the function in_array()

$idprod=3;

if (!in_array ('$idprod', $cartera))
{
$cartera[$j]=idprod;

}

is used in a correct way?
I think it don't work in my script.
Always is false;

[Anon]

You don't need the single quotes.

$idprod=3;

if (!in_array ($idprod, $cartera))
{
$cartera[$j]=idprod;
}