pdox
                                
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                        a useful new function
Suggest to add a new function
    public function getValue($name) { $query = $this->get(); return isset($query[$name])?$query[$name]:false; }
Hi @shaobingme , Thanks for your suggestion. We might think to add that functionality in next release. I note that.
Thanks.
I made a slight change:
public function getValue(string $field) 
{ 
        $query = $this->select($field)->get('array');
        return $query[$field] ?? null;
 }