如何检查两个数组之间的匹配与foreach在laravel刀片？ [英] How to check matches between 2 arrays with foreach in laravel blade?

问题描述

我有我的数据库中的标签数组。我也附加了当前项目的标签。我想检查是否已经连接了标签。这似乎工作，但当然，我最多有1个标签附加到项目时我的选择字段中重复的项目。

 < select name =tagsmultiple required> 
 @foreach（$ tags as $ name）
 @foreach（$ item-> tags as $ itemtag）
 @if（$ name == $ itemtag-> name）
< option value ={{$ name}}selected> {{$ name}}< / option> 
 @else 
< option value ={{$ name}}> {{$ name}}< / option> 
 @endif 
 @endforeach 
 @endforeach 
< / select> 
  

$ tags数组：

  {9：Acoustic，3，Angry，6，Autumn，10，Banjo， ： 低音， 14： 快乐， 12： 寒冷， 35： 脏， 8： 电动， 22： 的Epiphone， 24： ESP， 19： 挡泥板， 33： 恐怖， 16： 有趣， 18： 吉布森， 30： Gretsch的， 32： 常规 ，1，快乐，20，Ibanez，23，Jackson，31，Les Paul，28，Martin，15 21：Paul Reed Smith，27，Redwood，2，Sad，29，Schecter，17，Sleepy，34 7：Spring，4，Summer，26，Taylor，11，Ukulele，5，Winter，25，Yamaha $ b  

$ loop-> tags数组

：

  [{id：1，created_at：null，updated_at：null，name：Happy，pivot：{FK_loop_id ：2，FK_tag_id ：1}}，{ ID ：4，created_at ：空 的updated_at ：空， 姓名 ： 夏， 枢轴：{ FK_loop_id：2， FK_tag_id：4}}，{ ID：14， created_at：空 的updated_at：NULL， 名称： 快乐， 枢轴：{ FK_loop_id：2 FK_tag_id： 14}}，{ ID：9，CR eated_at：null，updated_at：null，name：Acoustic，pivot：{FK_loop_id：2，FK_tag_id：9}}] 
  / pre> 
 
解决方案
 
 
 
 < select name =tagsmultiple required> 
 @foreach（$ tags as $ name）
 @foreach（$ item-> tags as $ itemtag）
 @if（$ name == $ itemtag-> name）
< option value ={{$ name}}selected> {{$ name}}< / option> 
<？php继续2; ？> 
 @endif 
 @endforeach 
< option value ={{$ name}}> {{$ name}}< / option> 
 @endforeach 
  
  
I have an array of tags from my database. I also have attached tags from a current item. I want to check wether tags are already attached or not. This seems to work but of course I get duplicate items in my select-field when there is originally more than 1 tag attached to the item. How can I avoid this ?
<select name="tags" multiple required>
    @foreach ($tags as $name)
        @foreach($item->tags as $itemtag)
            @if($name == $itemtag->name)
                <option value="{{$name}}" selected>{{$name}}</option>
            @else
                <option value="{{$name}}">{{$name}}</option>
            @endif
        @endforeach
    @endforeach
</select>
$tags array :
 {"9":"Acoustic","3":"Angry","6":"Autumn","10":"Banjo","13":"Bass","14":"Cheerful","12":"Chill","35":"Dirty","8":"Electric","22":"Epiphone","24":"ESP","19":"Fender","33":"Funk","16":"Funny","18":"Gibson","30":"Gretsch","32":"Groovy","1":"Happy","20":"Ibanez","23":"Jackson","31":"Les Paul","28":"Martin","15":"Mellow","21":"Paul Reed Smith","27":"Redwood","2":"Sad","29":"Schecter","17":"Sleepy","34":"Spanish","7":"Spring","4":"Summer","26":"Taylor","11":"Ukulele","5":"Winter","25":"Yamaha"}
$loop->tags array : 
[{"id":1,"created_at":null,"updated_at":null,"name":"Happy","pivot":{"FK_loop_id":2,"FK_tag_id":1}},{"id":4,"created_at":null,"updated_at":null,"name":"Summer","pivot":{"FK_loop_id":2,"FK_tag_id":4}},{"id":14,"created_at":null,"updated_at":null,"name":"Cheerful","pivot":{"FK_loop_id":2,"FK_tag_id":14}},{"id":9,"created_at":null,"updated_at":null,"name":"Acoustic","pivot":{"FK_loop_id":2,"FK_tag_id":9}}]

解决方案
This should work :
<select name="tags" multiple required>
@foreach ($tags as $name)
    @foreach($item->tags as $itemtag)
        @if($name == $itemtag->name)
            <option value="{{$name}}" selected>{{$name}}</option>
            <?php continue 2; ?>
        @endif
    @endforeach
    <option value="{{$name}}">{{$name}}</option>
@endforeach


                        
这篇关于如何检查两个数组之间的匹配与foreach在laravel刀片？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！