Access a Multiple level stdClass object field?

Question

I have received this ridiculously complex array of objects as a SOAP response. I need to print out the "string_operator_collection" using a loop. It is a collection of operators similiar to ["equal_wild"] but with all different names. The nesting is so deep that I can't seem to access using normal methods. Any ideas please?

object(stdClass)#2 (1) { 
["get_search_frame_details_response"]
=> object(stdClass)#3 (2) { 
    ["response_context"]=> object(stdClass)#4 (3) { 
        ["session_token"]
        => string(28) "b0ac045931183d1ead6b9f6da061" 
        ["response_status"]=> string(2) "OK" 
        ["response_message"]=> string(0) "" } 
            ["search_frame_details_response_data"]
            => object(stdClass)#5 (2) { 
                ["search_field_collection"]=> object(stdClass)#6 (1) { 
                    ["search_field"]=> array(4) { 
                    [0]=> object(stdClass)#7 (3) { 
                        ["field_id"]
                        => string(82) 
                        "OsCashAllocationCashAllocationPk" 
                        ["field_name"]=> string(15) "Customer Number" 
                        ["field_operator"]
                        => object(stdClass)#8 (1) { 
                            ["string_operator_collection"]
                            => object(stdClass)#9 (16) { 
                                ["equal_wild"]=> string(2) "=*"

My best effort so far is:

get_search_frame_details_response->
  search_frame_details_response_data->
    search_field_collection->search_field;

    print_r(array_values($search_frame_op1));

Answer 1

I think (display is not helpful) the address of string_operator_collection is

$obj
->get_search_frame_details_response
->search_frame_details_response_data
->search_field_collection
->search_field[]
->field_operator
->string_operator_collection
->equal_wild

So as the array starts at

$obj
->get_search_frame_details_response
->search_frame_details_response_data
->search_field_collection
->search_field[];

we can write a loop like this

$the_array =  $obj
                ->get_search_frame_details_response
                ->search_frame_details_response_data
                ->search_field_collection
                ->search_field;  

foreach($the_array as $field ) {
    echo $field
            ->field_operator
            ->string_operator_collection
            ->equal_wild;
}