PHP Deprecated

Message

unserialize(): Passing null to parameter #1 ($data) of type string is deprecated

Error at

app/addons/hybrid_auth/func.php, line: 200

Backtrace

SELECT 
  f.feature_id, 
  f.purpose, 
  p.product_id, 
  p.parent_product_id, 
  g.id, 
  g.code 
FROM 
  cscart_product_variation_group_features AS f 
  INNER JOIN cscart_product_variation_groups AS g ON f.group_id = g.id 
  INNER JOIN cscart_product_variation_group_products AS p ON f.group_id = p.group_id 
WHERE 
  p.product_id IN (
    94068, 94069, 94070, 94071, 94072, 94076, 
    94077, 94078, 94079, 94449, 94686, 
    94687, 94688, 94689, 94690, 94691, 
    94692, 94693, 94694, 94695, 94696, 
    94697, 94698, 94699, 94700, 94701, 
    94702, 94703, 94704, 94705, 94706, 
    94707, 94708, 94710, 94711, 94712, 
    94713, 94714, 94715, 94716, 96295, 
    96296, 96297, 96298, 96299, 96300, 
    96301, 96302, 96303, 96706, 96707, 
    96708, 96709, 96710, 96711, 96712, 
    96713, 96714, 96715, 96716, 96717, 
    96718, 96719, 96720, 96721, 96722, 
    96723, 96724, 96725, 96726, 96727, 
    96728, 96729, 96730, 96731, 96732, 
    96733, 96734, 96735, 96736, 96737, 
    96738, 96739, 96740, 96741, 96742, 
    96743, 96744, 96745, 96748, 96749, 
    96750, 96752, 96753, 96754, 96755
  )

Query time 0.00077

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "1.05"
    },
    "nested_loop": [
      {
        "table": {
          "table_name": "f",
          "access_type": "ALL",
          "possible_keys": [
            "idx_group_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 1,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "0.25",
            "eval_cost": "0.10",
            "prefix_cost": "0.35",
            "data_read_per_join": "104"
          },
          "used_columns": [
            "feature_id",
            "purpose",
            "group_id"
          ]
        }
      },
      {
        "table": {
          "table_name": "g",
          "access_type": "eq_ref",
          "possible_keys": [
            "PRIMARY"
          ],
          "key": "PRIMARY",
          "used_key_parts": [
            "id"
          ],
          "key_length": "3",
          "ref": [
            "nuie_scalesta_net.f.group_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 1,
          "filtered": "100.00",
          "cost_info": {
            "read_cost": "0.25",
            "eval_cost": "0.10",
            "prefix_cost": "0.70",
            "data_read_per_join": "400"
          },
          "used_columns": [
            "id",
            "code"
          ]
        }
      },
      {
        "table": {
          "table_name": "p",
          "access_type": "ref",
          "possible_keys": [
            "PRIMARY",
            "idx_group_id"
          ],
          "key": "idx_group_id",
          "used_key_parts": [
            "group_id"
          ],
          "key_length": "3",
          "ref": [
            "nuie_scalesta_net.f.group_id"
          ],
          "rows_examined_per_scan": 1,
          "rows_produced_per_join": 1,
          "filtered": "100.00",
          "index_condition": "(`nuie_scalesta_net`.`p`.`product_id` in (94068,94069,94070,94071,94072,94076,94077,94078,94079,94449,94686,94687,94688,94689,94690,94691,94692,94693,94694,94695,94696,94697,94698,94699,94700,94701,94702,94703,94704,94705,94706,94707,94708,94710,94711,94712,94713,94714,94715,94716,96295,96296,96297,96298,96299,96300,96301,96302,96303,96706,96707,96708,96709,96710,96711,96712,96713,96714,96715,96716,96717,96718,96719,96720,96721,96722,96723,96724,96725,96726,96727,96728,96729,96730,96731,96732,96733,96734,96735,96736,96737,96738,96739,96740,96741,96742,96743,96744,96745,96748,96749,96750,96752,96753,96754,96755))",
          "cost_info": {
            "read_cost": "0.25",
            "eval_cost": "0.10",
            "prefix_cost": "1.05",
            "data_read_per_join": "16"
          },
          "used_columns": [
            "product_id",
            "parent_product_id",
            "group_id"
          ]
        }
      }
    ]
  }
}