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 (
    97167, 97168, 97169, 97170, 97171, 97172, 
    97173, 97174, 97175, 97176, 97177, 
    97178, 97179, 97180, 97181, 97182, 
    97183, 97184, 97185, 97186, 97187, 
    97188, 97189, 97190, 97191, 97192, 
    97193, 97194, 97195, 97196, 97197, 
    97198, 97199, 97200, 97201, 97202, 
    97203, 97204, 97205, 97206, 97207, 
    97208, 97209, 97210, 97211, 97212, 
    97213, 97214, 97215, 97216, 97217, 
    97218, 97228, 97229, 97230, 97231, 
    97232, 97233, 97234, 97235, 97236, 
    97237, 97238, 97239, 97240, 97241, 
    97242, 97243, 97244, 97245, 97246, 
    97247, 97248, 97249, 97250, 97251, 
    97252, 97253, 97254, 97255, 97256, 
    97257, 97258, 97259, 97260, 97261, 
    97262, 97263, 97264, 97265, 97266, 
    97267, 97268, 97269, 97270, 97271
  )

Query time 0.00089

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 (97167,97168,97169,97170,97171,97172,97173,97174,97175,97176,97177,97178,97179,97180,97181,97182,97183,97184,97185,97186,97187,97188,97189,97190,97191,97192,97193,97194,97195,97196,97197,97198,97199,97200,97201,97202,97203,97204,97205,97206,97207,97208,97209,97210,97211,97212,97213,97214,97215,97216,97217,97218,97228,97229,97230,97231,97232,97233,97234,97235,97236,97237,97238,97239,97240,97241,97242,97243,97244,97245,97246,97247,97248,97249,97250,97251,97252,97253,97254,97255,97256,97257,97258,97259,97260,97261,97262,97263,97264,97265,97266,97267,97268,97269,97270,97271))",
          "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"
          ]
        }
      }
    ]
  }
}