src/Chronos/Content/app/Models/Content.php
public function __isset($key)
    {
        if (isset($this->custom_attributes[$key]))
            return true;

        return ! is_null($this->getAttribute($key));
    }
public function __isset($key)
    {
        if (isset($this->custom_attributes[$key]))
            return true;

        return ! is_null($this->getAttribute($key));
    }
public function __isset ( $ key ) { if ( isset ( $ this -> custom_attributes [ $ key ] ) ) return true ; return ! is_null ( $ this -> getAttribute ( $ key ) ) ; }
Determine if a dynamic attribute or relation exists on the model.

@param  string  $key
@return bool
Determine if a dynamic attribute or relation exists on the model .