Php

 @isset($name) 
        {{'name is set!'}}
      @endisset

//In Controller
public function returnView() {
    return View::make('view')->with('param',$param);
}

//In View
@isset($param)

@isset($records)
    // $records is defined and is not null...
@endisset

<h2>{{ $item->category->category_name ? 'no category' }}</h2>

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