PHP对象转数组函数

/**
* PHP 对象 转 数组
*
* @param object $obj 对象
* @return array
*/
function object_to_array($obj) {
    $obj = (array)$obj;
    foreach ($obj as $k => $v) {
        if (gettype($v) == 'resource') {
            return;
        }
        if (gettype($v) == 'object' || gettype($v) == 'array') {
            $obj[$k] = (array)object_to_array($v);
        }
    }

    return $obj;
}

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