我正在从数据库中获取一些信息:
$foo = $this->fooRepository->all()->lists('name', 'id');
我得到:
Collection {#506 ▼
#items: array:9 [▼
"9c436867-afe9-4234-a849-253aea4f602c" => "aaa"
"d250102b-1370-40d0-99c5-7e5bfd0a15e4" => "sss"
"7342f212-083b-458d-8af8-24986bbb627d" => "ddd"
"029c53ce-dc16-49fd-8d83-9d8270d9ff37" => "fff"
"3add6a37-72e2-4054-853e-9ed8addbf3ea" => "ggg"
"28f5a9ac-014e-4f22-bda8-e2d5b1f48273" => "hhh"
"94fccb2c-d732-4369-9bf7-78925797e578" => "jjj"
"5b494994-93f0-406e-b420-aceb7b6111d7" => "kkk"
"22a7824a-c6eb-45e7-b9c5-e40c134e3ac8" => "lll"
]
}
完美的该集合随后被传递到Form::select
,以填充" Select /选项"下拉列表.
我想在这个集合前面加上另一个键值对,其中key是空字符串,value包含"Choose something"这样的文本.
我可以附加:
$foo[''] = 'Choose something…';
所以我明白了
Collection {#506 ▼
#items: array:10 [▼
"9c436867-afe9-4234-a849-253aea4f602c" => "aaa"
"d250102b-1370-40d0-99c5-7e5bfd0a15e4" => "sss"
"7342f212-083b-458d-8af8-24986bbb627d" => "ddd"
"029c53ce-dc16-49fd-8d83-9d8270d9ff37" => "fff"
"3add6a37-72e2-4054-853e-9ed8addbf3ea" => "ggg"
"28f5a9ac-014e-4f22-bda8-e2d5b1f48273" => "hhh"
"94fccb2c-d732-4369-9bf7-78925797e578" => "jjj"
"5b494994-93f0-406e-b420-aceb7b6111d7" => "kkk"
"22a7824a-c6eb-45e7-b9c5-e40c134e3ac8" => "lll"
"" => "Choose something…"
]
}
但不知道.我不能使用array_merge
,因为我处理的是Illuminate\Database\Eloquent\Collection
的实例,而不是数组,所以this answer不起作用.
有什么提示吗?谢谢