$attr = 'field' . $key;
$myobject->$attr;
或者
$myobject->{'field_'.$key};
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来源:https://www.02405.com/archives/2328
$attr = 'field' . $key;
$myobject->$attr;
或者
$myobject->{'field_'.$key};
来源:https://www.02405.com/archives/2328