使用$ key无序的foreach（$ list as $ key => $ categoryTournament）

Question

I'm using Laravel, but I think this is general to PHP.

When I try to loop a Collection with with this code

@foreach($categoryTournaments as $key => $categoryTournament)
   {{ $key }} // Means echo
@endforeach

Output: 1 0 2 4 3

I randomly get unorderer keys, instead of having 0 1 2 3 4 as I should expect.

CategoryTournament is an Object, I join the 5 objects:

Collection {#522 ▼
  #items: array:5 [▼
    0 => CategoryTournament {#523 ▼
      #dates: array:3 [▶]
      #table: "category_tournament"
      +timestamps: true
      #fillable: array:2 [▶]
      #connection: null
      #primaryKey: "id"
      #perPage: 15
      +incrementing: true
      #attributes: array:6 [▼
        "id" => 164
        "tournament_id" => 71
        "category_id" => 5
        "created_at" => "2016-03-23 00:04:47"
        "updated_at" => "2016-03-23 00:04:47"
        "deleted_at" => null
      ]
      #original: array:6 [▶]
      #relations: []
      #hidden: []
      #visible: []
      #appends: []
      #guarded: array:1 [▶]
      #dateFormat: null
      #casts: []
      #touches: []
      #observables: []
      #with: []
      #morphClass: null
      +exists: true
      +wasRecentlyCreated: false
      #forceDeleting: false
    }
    1 => CategoryTournament {#524 ▼
      #dates: array:3 [▶]
      #table: "category_tournament"
      +timestamps: true
      #fillable: array:2 [▶]
      #connection: null
      #primaryKey: "id"
      #perPage: 15
      +incrementing: true
      #attributes: array:6 [▶]
      #original: array:6 [▶]
      #relations: []
      #hidden: []
      #visible: []
      #appends: []
      #guarded: array:1 [▶]
      #dateFormat: null
      #casts: []
      #touches: []
      #observables: []
      #with: []
      #morphClass: null
      +exists: true
      +wasRecentlyCreated: false
      #forceDeleting: false
    }
    2 => CategoryTournament {#525 ▼
      #dates: array:3 [▶]
      #table: "category_tournament"
      +timestamps: true
      #fillable: array:2 [▶]
      #connection: null
      #primaryKey: "id"
      #perPage: 15
      +incrementing: true
      #attributes: array:6 [▶]
      #original: array:6 [▶]
      #relations: []
      #hidden: []
      #visible: []
      #appends: []
      #guarded: array:1 [▶]
      #dateFormat: null
      #casts: []
      #touches: []
      #observables: []
      #with: []
      #morphClass: null
      +exists: true
      +wasRecentlyCreated: false
      #forceDeleting: false
    }
    3 => CategoryTournament {#526 ▼
      #dates: array:3 [▶]
      #table: "category_tournament"
      +timestamps: true
      #fillable: array:2 [▶]
      #connection: null
      #primaryKey: "id"
      #perPage: 15
      +incrementing: true
      #attributes: array:6 [▶]
      #original: array:6 [▶]
      #relations: []
      #hidden: []
      #visible: []
      #appends: []
      #guarded: array:1 [▶]
      #dateFormat: null
      #casts: []
      #touches: []
      #observables: []
      #with: []
      #morphClass: null
      +exists: true
      +wasRecentlyCreated: false
      #forceDeleting: false
    }
    4 => CategoryTournament {#527 ▼
      #dates: array:3 [▶]
      #table: "category_tournament"
      +timestamps: true
      #fillable: array:2 [▶]
      #connection: null
      #primaryKey: "id"
      #perPage: 15
      +incrementing: true
      #attributes: array:6 [▶]
      #original: array:6 [▶]
      #relations: []
      #hidden: []
      #visible: []
      #appends: []
      #guarded: array:1 [▶]
      #dateFormat: null
      #casts: []
      #touches: []
      #observables: []
      #with: []
      #morphClass: null
      +exists: true
      +wasRecentlyCreated: false
      #forceDeleting: false
    }
  ]
}

Any idea why is it happening?

Answer 1

You can Use ksort function to sort the Array According to key

ksort($categoryTournaments); 

This function Arrange your array keys in Ascending order