if null assign value 0, if statement code reuse - php

Question

If my value is equal to null then I want to assign the value of 0 instead of having null. I've achieved that using my if statement however, its a lot of code production and I plan on adding more social networks is there a better way of achieving this.
$google = $request->input('google');
$facebook = $request->input('facebook');
if ($request->input('google') == null){
$google = 0;
} else {
$google = 1;
}
if ($request->input('facebook') == null){
$facebook = 0;
} else {
$facebook = 1;
}

Answer 1

You can use trenary operator
$google = ($request->input('google') == null) ? 0 : 1;

Answer 2

In order to prevent repeating the same code for each social networks you can do this.
$providers = array(
'google',
'facebook',
);
foreach ($providers as $provider) {
if ($request->input($provider) == null) {
$$provider = 0;
} else {
$$provider = 1;
}
}
IMO the drawback is creating a dynamic variable name, to prevent this, you need to some modifications :
$providers = array(
'google' => 0,
'facebook' => 0,
);
foreach ($providers as $providerKey => $providerValue) {
if ($request->input($providerKey) != null) {
$providers[$providerKey] = 1;
}
}
Hope this helps