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 (
    92136, 92137, 84026, 84027, 84028, 84029, 
    85580, 89486, 89014, 84018, 84019, 
    84020, 84021, 92019, 92020, 92021, 
    92022, 92023, 92024, 92025, 92107, 
    92108, 92109, 92110, 92111, 92112, 
    92113, 89626, 89639, 83097, 92151, 
    92152, 92153, 92353, 92354, 92355, 
    92356, 89651, 89652, 84103, 83974, 
    83975, 83976, 83977, 84014, 84015, 
    84016, 84017, 84036, 88933, 89011, 
    89523, 90109, 91308, 91893, 91894, 
    91895, 92050, 92138, 92337, 92338, 
    92339, 92340, 83954, 83956, 83958, 
    83960, 90061, 85531, 89623, 89636, 
    83978, 83979, 83980, 83981, 90106, 
    88936, 89648, 89649, 83970, 83971, 
    83972, 83973, 89620, 89633, 91304, 
    83982, 83983, 83984, 83985, 91300, 
    89650, 89187, 90067, 90081, 91839
  )

Query time 0.00055

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 (92136,92137,84026,84027,84028,84029,85580,89486,89014,84018,84019,84020,84021,92019,92020,92021,92022,92023,92024,92025,92107,92108,92109,92110,92111,92112,92113,89626,89639,83097,92151,92152,92153,92353,92354,92355,92356,89651,89652,84103,83974,83975,83976,83977,84014,84015,84016,84017,84036,88933,89011,89523,90109,91308,91893,91894,91895,92050,92138,92337,92338,92339,92340,83954,83956,83958,83960,90061,85531,89623,89636,83978,83979,83980,83981,90106,88936,89648,89649,83970,83971,83972,83973,89620,89633,91304,83982,83983,83984,83985,91300,89650,89187,90067,90081,91839))",
          "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"
          ]
        }
      }
    ]
  }
}