DB::raw("CONCAT(first_name,' ',last_name) AS name"),'id') ->where('designation', 1) ->pluck('name', 'id');
Laravel使用concat与pluck方法最优雅的解决方案是创建一个访问器。打开您的Employees类（model），添加一个...
pluck()The pluck method retrieves all of the values for a given key:$collection = collect([ ['product_id' => 'prod-100', 'name' => 'Desk'], ['product_id' => 'prod-200', 'name' => 'Chair'], ]); $plucked = $collection->pluck('name'); $plucked->all(); // ['Desk',...
Laravel 文档写的很好,只是新手看起来会有点吃力,需要结合经验和网上的文章,多读、细读才能更好的理解。Again,多读、细读官方文档。本文类似于一个大纲,欲知其中详情,且去细读官方文档:Laravel 5.5 docs。### ### ###
1$plucked = $collection->pluck('name', 'product_id'); 2 3$plucked->all(); 4 5// ['prod-100' => 'Desk', 'prod-200' => 'Chair']If duplicate keys exist, the last matching element will be inserted into the plucked collection:...
The pluck method retrieves all of the values for a given key:1$collection = collect([ 2 ['product_id' => 'prod-100', 'name' => 'Desk'], 3 ['product_id' => 'prod-200', 'name' => 'Chair'], 4]); 5 6$plucked = $collection->pluck('name'); 7 8$plucked->all(); ...