I have a dynamically generated form that gives me an array of inputs. However the array might be empty, then the foreach will fail.
public function myfunction(Request $request)
{
if(isset($request))
{
#do something
}
}
This obviously doesn't work since it is a $request object and is always set. I have no idea however how to check if there is any input at all.
Any ideas?
A simple count check will do
if (count($request->all())) {
// foreach here.
}
I always do this with my installations by adding a function to the Controller in the App\Http\Controllers directory.
use Illuminate\Http\Request;
public function hasInput(Request $request)
{
if($request->has('_token')) {
return count($request->all()) > 1;
} else {
return count($request->all()) > 0;
}
}
Rather self explanatory, return true if other input variables outside of the _token, or return true if no token and contains other variables.
if statements and instead using return count($request->all()) > 0; or return count($request->all()) > 1;
Request class has a except() method that includes everything except the key/keys defined. So:
if ( !empty( $request->except('_token') ) )
execute the code when there is "something" in the request array.
If you have a reference of the form inputs you're expecting, then Request::has() might be a good method to use. Request::all() could contain things like the XSRF token and would give you false positives.
A simple modification @Saravanan code above. I agree with him that a simple check on the total number of inputs in the request will do.
if(count($request->all()) >= 1)
{
//execute if the request has one or more input fields
}
else {
//executes if the request is totally empty.
}
