只有字段的Laravel集合返回集合

Question

我有一些Laravel系列包含一些字段:

Collection {#324 ?
  #items: array:3 [?
    0 => array:5 [?
      "img_src" => "http://newregalospersonales.dev/./svg/regalos-personalizados-gift.svg"
      "img_alt" => "<span>Regalos</span> originales"
      "class" => "personalised-gifts"
      "elements" => array:4 [?
        0 => array:2 [?]//element1
        1 => array:2 [?]//element2
        2 => array:2 [?]//element3
        3 => array:2 [?]//element4
      ]
    ]
    1 => array:5 [?
      "img_src" => "http://newregalospersonales.dev/./svg/love-gifts.svg"
      "img_alt" => "<span>Regalos</span> románticos"
      "class" => "love-gifts"
      "elements" => array:4 [?
        0 => array:2 [?]//element1
        1 => array:2 [?]//element2
        2 => array:2 [?]//element3
        3 => array:2 [?]//element4
      ]
    ]
    2 => array:5 [?
      "img_src" => "http://newregalospersonales.dev/./svg/regalos-ocasiones-especiales.svg"
      "img_alt" => "<span>Detalles</span><br>de boda"
      "class" => "wedding"
      "elements" => array:4 [?
        0 => array:2 [?]//element1
        1 => array:2 [?]//element2
        2 => array:2 [?]//element3
        3 => array:2 [?]//element4
      ]
    ]
  ]
}

而且我只收到字段'elements'的集合.

我想要一个这样的结果:

Collection {#324 ?
  #items: array:3 [?
    0 => array:4 [?
        0 => array:2 [?] //element1
        1 => array:2 [? //element2 
        2 => array:2 [?] //element3
        3 => array:2 [?] //element4
    ]
    1 => array:4 [?

        0 => array:2 [?] //element1
        1 => array:2 [?] //element2
        2 => array:2 [?] //element3
        3 => array:2 [?] //element4
    ]
    2 => array:4 [?

        0 => array:2 [?] //element1
        1 => array:2 [?] //element2
        2 => array:2 [?] //element3
        3 => array:2 [?] //element4
    ]
  ]
}

有没有办法做到这一点？我正在使用Laravel 5.3版本,我不知道这种情况下的集合过滤器使用.

Answer 1

你可以使用pluck()方法:

$plucked = $collection->pluck('elements');

pluck方法检索给定键的所有值.