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<?php $arr[] = ["_source" => ["block" => ["Kurud"], "district" => ["Dhamtari"], "state" => ["Chhattisgarh"]]]; $arr[] = ["_source" => ["block" => ["North-Bangeluru"], "district" => ["Bangalore"], "state" => ["Karnataka"]]]; $keys = array_keys($arr[0]["_source"]); $res[] = $keys; foreach($arr as $e) { $temp = []; foreach($keys as $k) $temp[] = $e["_source"][$k][0]; $res[] = $temp; } print_r($res);

This is an error 500

Value for `_results` contains invalid data `array`


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