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 (
    94891, 94892, 94894, 94895, 94898, 94903, 
    94904, 94905, 94908, 94909, 94910, 
    94911, 94912, 94913, 94914, 94915, 
    94918, 94921, 94922, 94923, 94924, 
    94925, 94926, 94927, 94928, 94929, 
    94930, 94931, 94932, 94933, 94934, 
    94935, 94936, 94937, 94938, 94941, 
    94943, 94944, 94947, 96247, 96248, 
    96249, 96252, 96253, 96254, 96255, 
    96256, 96257, 96258, 96259, 96262, 
    96265, 96266, 96267, 96268, 96269, 
    96270, 96271, 96272, 96273, 96274, 
    96275, 96276, 96277, 96278, 96279, 
    96280, 96281, 96282, 96287, 96288, 
    96289, 96292, 96574, 96575, 96577, 
    96578, 96579, 96580, 96584, 96585, 
    96586, 96587, 96588, 96589, 96590, 
    96591, 96592, 96593, 96594, 96595, 
    96596, 100547, 100548, 100549, 100551
  )

Query time 0.00072

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 (94891,94892,94894,94895,94898,94903,94904,94905,94908,94909,94910,94911,94912,94913,94914,94915,94918,94921,94922,94923,94924,94925,94926,94927,94928,94929,94930,94931,94932,94933,94934,94935,94936,94937,94938,94941,94943,94944,94947,96247,96248,96249,96252,96253,96254,96255,96256,96257,96258,96259,96262,96265,96266,96267,96268,96269,96270,96271,96272,96273,96274,96275,96276,96277,96278,96279,96280,96281,96282,96287,96288,96289,96292,96574,96575,96577,96578,96579,96580,96584,96585,96586,96587,96588,96589,96590,96591,96592,96593,96594,96595,96596,100547,100548,100549,100551))",
          "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"
          ]
        }
      }
    ]
  }
}