Question

我试图从我的模型中收集数据。我遇到这个错误Undefined offset：1。我使用了Laravel 5.2

我一直在寻找解决方案但仍然没有得到它

    $data = collect();
        $leads = $school->students()->leads()->with('relationships');

    foreach ($leads->get() as $key => $lead) {    
        $data->push([
            'id'               => $lead->id,
            'name'             => $lead->name,
            'mobile_number'    => $lead->mobile_number,
            'email'            => $lead->email,
            'age'              => $lead->age ? $lead->age : 'N/A',
            'birthdate'        => $lead->birthdate ? $lead->birthdate : 'N/A', 
            'guardian_name'    => $lead->relationships[$key]->name,  
        ]);   
    };

如果空键

，如何跳过$ key

这是数组 1有关系，另一个是空的。如果关系或数据为空，如何进行键跳过

 0 => array:7 [▼
  "id" => 11654124
  "name" => "Rhyl Meizhari"
  "mobile_number" => "09491919882"
  "email" => "rhyl@mei.zhari"
  "age" => 6
  "birthdate" => "03/01/2012"
  "a" => Collection {#1463 ▼
    #items: array:1 [▼
      0 => Relationship {#1466 ▼
        #historyCreationsEnabled: true
        #dontKeepHistoryOf: array:1 [▶]
        #appends: array:2 [▶]
        #hidden: array:1 [▶]
        #connection: null
        #table: null
        #primaryKey: "id"
        #keyType: "int"
        #perPage: 15
        +incrementing: true
        +timestamps: true
        #attributes: array:14 [▶]
        #original: array:14 [▶]
        #relations: []
        #visible: []
        #fillable: []
        #guarded: array:1 [▶]
        #dates: []
        #dateFormat: null
        #casts: []
        #touches: []
        #observables: []
        #with: []
        #morphClass: null
        +exists: true
        +wasRecentlyCreated: false
        -originalData: []
        -updatedData: []
        -updating: false
        -dontKeep: []
        -doKeep: []
        #dirtyData: []
        #affected_id: null
        #message: []
        -foreign_key: false
      }
    ]
  }
]
1 => array:7 [▼
  "id" => 11658815
  "name" => "Michelle Gabrillo"
  "mobile_number" => "09060484380"
  "email" => "mituyako10@gmail.com"
  "age" => 24
  "birthdate" => "01/02/1994"
  "a" => Collection {#1448 ▼
    #items: []
  }
]

Answer 1

我设法制作此'guardian_name' => $lead->relationships->first()

并返回此

0 => array:7 [▼
      "id" => 11654124
      "name" => "Rhyl Meizhari"
      "mobile_number" => "09491919882"
      "email" => "rhyl@mei.zhari"
      "age" => 6
      "birthdate" => "03/01/2012"
      "guardian_name" => Collection {#1463 ▼
        #items: array:1 [▶]
      }
    ]
    1 => array:7 [▼
      "id" => 11658815
      "name" => "Michelle Gabrillo"
      "mobile_number" => "09060484380"
      "email" => "mituyako10@gmail.com"
      "age" => 24
      "birthdate" => "01/02/1994"
      "guardian_name" => null
    ]

问题是我不知道如何访问关系属性数组

 0 => array:7 [▼
  "id" => 11654124
  "name" => "Rhyl Meizhari"
  "mobile_number" => "09491919882"
  "email" => "rhyl@mei.zhari"
  "age" => 6
  "birthdate" => "03/01/2012"
  "guardian_name" => Collection {#1463 ▼
    #items: array:1 [▼
      0 => Relationship {#1466 ▼
        #historyCreationsEnabled: true
        #dontKeepHistoryOf: array:1 [▶]
        #appends: array:2 [▶]
        #hidden: array:1 [▶]
        #connection: null
        #table: null
        #primaryKey: "id"
        #keyType: "int"
        #perPage: 15
        +incrementing: true
        +timestamps: true
        #attributes: array:14 [▼
          "id" => 2970
          "type" => "Payer"
          "sub_type" => "Father"
          "student_id" => 11654124
          "first_name" => "Mityak"
          "last_name" => "Badayos"
          "email" => "michelle@themartialartsbusiness.software"
          "contact_number" => "09491919882"
          "access_permissions" => "null"
          "existing_user" => 11650816
          "ack" => 1
          "ack_key" => "116e67c3ceaa8dcd9051e7c2a4aefbaa"
          "created_at" => "2017-10-30 10:45:08"
          "updated_at" => "2017-10-30 10:45:08"
        ]
        #original: array:14 [▶]
        #relations: []
        #visible: []
        #fillable: []
        #guarded: array:1 [▶]
        #dates: []
        #dateFormat: null
        #casts: []
        #touches: []
        #observables: []
        #with: []
        #morphClass: null
        +exists: true
        +wasRecentlyCreated: false
        -originalData: []
        -updatedData: []
        -updating: false
        -dontKeep: []
        -doKeep: []
        #dirtyData: []
        #affected_id: null
        #message: []
        -foreign_key: false
      }
    ]
  }
]

可以在不使用密钥的情况下手动访问#attributes

ErrorException：未定义的偏移量：1

1 个答案: