php - 将多维混合对象和数组转换为数组，同时保留对象名称作为键 - PHP

Question

可能重复：
将对象转换为数组

假设我有一个这样的数组：（请注意，某些方法/对象可能受到保护，因此必须在自己的类中访问它们）

array(
    0=> objectname{
        [method1:protected]=> array(
            ["key1"] => object2{
                [method2]=> array(
                    0 => "blah"
                )
            }
        )
    }
    1=> objectname{
        [method1:protected]=> array(
            ["key1"] => object2{
                [method2]=> array(
                    0 => "blah"
                )
            }
        )
    }
)

我想将所有这些转换成一个数组。我通常会使用这个：

protected function _object_to_array($obj){

    if(is_object($obj)) $obj = (array) $obj;

    if(is_array($obj)) {

        $new = array();
        foreach($obj as $key => $val) {
            $new[$key] = self::_object_to_array($val);
        }

    }else{

        $new = $obj;

    }

    return $new;

}

问题是这不会保留对象名称。我希望对象名称成为一个额外的键，将数组提升一个维度。例如，将 0 替换为 objectname 可能有效，但最好创建如下内容：

array(
    0=> array(
        objectname=> array(
            ...blah blah
        )
    )
)

Answer 1

弄清楚了。

然而新的问题是，受保护的方法最终会变成像 [*formermethodturnedkey] 这样的键。它们似乎无法访问。怎么能像这样访问密钥？

protected function _object_to_array($obj){

    //we want to preserve the object name to the array
    //so we get the object name in case it is an object before we convert to an array (which we lose the object name)
    $obj_name = false;
    if(is_object($obj)){
        $obj_name = get_class($obj);
        $obj = (array) $obj;
    }

    //if obj is now an array, we do a recursion
    //if obj is not, just return the value
    if(is_array($obj)) {

        $new = array();

        //initiate the recursion
        foreach($obj as $key => $val) {
            //we don't want those * infront of our keys due to protected methods
            $new[$key] = self::_object_to_array($val);
        }

        //now if the obj_name exists, then the new array was previously an object
        //the new array that is produced at each stage should be prefixed with the object name
        //so we construct an array to contain the new array with the key being the object name
        if(!empty($obj_name)){
            $new = array(
                $obj_name => $new,
            );
        }

    }else{

        $new = $obj;

    }

    return $new;

}