Php 如何在laravel中将多选值插入数据库？

查看代码：

      <div class="col-sm-10">
              <select multiple="multiple" class="form-control"    
      name="serial-lists[]" id="serial-lists[]" required>
                <option value="1.0.0.1">1.0.0.1</option>
                <option value="1.0.0.2">1.0.0.2</option>
                <option value="1.0.0.3">1.0.0.3</option>
                <option value="1.0.0.4">1.0.0.3</option>
                <option value="1.0.0.5">1.0.0.3</option>
                <option value="1.0.0.6">1.0.0.4</option>
                <option value="1.0.0.7">1.0.0.5</option>
              </select>
            </div>

     $versions = new supportedversionsModel;
     $versions->supportedversions = implode(',', $request-
     >input('serial-lists'));
     $versions->build()->associate($temp);
     $versions->save();

class supportedversionsModel extends Model
{

 protected $table="HaghwaySupports";
 protected $connections="mysql";

  public function build(){

        return $this->belongsToMany(debModel::class);
    }
}

class HaghwaySupversiosn extends Migration
{

    public function up()
    {
        Schema::create('HaghwaySupports', function($table) {
            $table->engine='InnoDB';
            $table->increments('id');
            $table->integer('build_id')->unsigned();
            $table->string('supportedversions');
            $table->foreign('build_id')->references('buildid')-
            >on('MainHaghway');
            $table->timestamps();

        });
    }

    public function down()
    {
        Schema::dropIfExists('HaghwaySupports');
    }
}

这是我的控制器代码。这里它应该将所选的值保存到db中。但是插入时它会抛出错误。例如，插入时数组到字符串的转换

支持的版本型号代码：

      <div class="col-sm-10">
              <select multiple="multiple" class="form-control"    
      name="serial-lists[]" id="serial-lists[]" required>
                <option value="1.0.0.1">1.0.0.1</option>
                <option value="1.0.0.2">1.0.0.2</option>
                <option value="1.0.0.3">1.0.0.3</option>
                <option value="1.0.0.4">1.0.0.3</option>
                <option value="1.0.0.5">1.0.0.3</option>
                <option value="1.0.0.6">1.0.0.4</option>
                <option value="1.0.0.7">1.0.0.5</option>
              </select>
            </div>

     $versions = new supportedversionsModel;
     $versions->supportedversions = implode(',', $request-
     >input('serial-lists'));
     $versions->build()->associate($temp);
     $versions->save();

class supportedversionsModel extends Model
{

 protected $table="HaghwaySupports";
 protected $connections="mysql";

  public function build(){

        return $this->belongsToMany(debModel::class);
    }
}

class HaghwaySupversiosn extends Migration
{

    public function up()
    {
        Schema::create('HaghwaySupports', function($table) {
            $table->engine='InnoDB';
            $table->increments('id');
            $table->integer('build_id')->unsigned();
            $table->string('supportedversions');
            $table->foreign('build_id')->references('buildid')-
            >on('MainHaghway');
            $table->timestamps();

        });
    }

    public function down()
    {
        Schema::dropIfExists('HaghwaySupports');
    }
}

supportedversion表的迁移代码：

      <div class="col-sm-10">
              <select multiple="multiple" class="form-control"    
      name="serial-lists[]" id="serial-lists[]" required>
                <option value="1.0.0.1">1.0.0.1</option>
                <option value="1.0.0.2">1.0.0.2</option>
                <option value="1.0.0.3">1.0.0.3</option>
                <option value="1.0.0.4">1.0.0.3</option>
                <option value="1.0.0.5">1.0.0.3</option>
                <option value="1.0.0.6">1.0.0.4</option>
                <option value="1.0.0.7">1.0.0.5</option>
              </select>
            </div>

     $versions = new supportedversionsModel;
     $versions->supportedversions = implode(',', $request-
     >input('serial-lists'));
     $versions->build()->associate($temp);
     $versions->save();

class supportedversionsModel extends Model
{

 protected $table="HaghwaySupports";
 protected $connections="mysql";

  public function build(){

        return $this->belongsToMany(debModel::class);
    }
}

class HaghwaySupversiosn extends Migration
{

    public function up()
    {
        Schema::create('HaghwaySupports', function($table) {
            $table->engine='InnoDB';
            $table->increments('id');
            $table->integer('build_id')->unsigned();
            $table->string('supportedversions');
            $table->foreign('build_id')->references('buildid')-
            >on('MainHaghway');
            $table->timestamps();

        });
    }

    public function down()
    {
        Schema::dropIfExists('HaghwaySupports');
    }
}

---

将其另存为JSON字符串

 $versions = new supportedversionsModel;
 $versions->supportedversions =  json_encode(implode(',', $request->input('serial-lists')));     
 $versions->build()->associate($temp);
 $versions->save();

在检索时

$versions->serial_list = json_decode($serial_list, true);

有关更多信息，请浏览此链接：

---

使用

dd（$versions）

检查它是否是一个合法的模型对象，我应该在哪里提到ittry to do dd（$versions）；在$versions->save之前；是的，先生，dd（$versions）工作它显示了受支持的版本模型{#228▼ #表：“HaghwaySupports”#connections:“mysql”#connection:null#primaryKey:“id”#keyType:“int”+递增：true#with:[]#withCount:[]#perPage:15+exists:false+wasRecentlyCreated:false#属性：数组：2[▶] #原始：[]#强制转换：[]#日期：[]#日期格式：null#附录：[]#事件：[]#可观察对象：[]#关系：数组：1[▶] #触摸：[]时间戳：真[隐藏]可见：[]可填充：[]受保护：数组：1[▶] }[{“salesPackage”：“[\'acces\”，\'manusa\”]”}，{“salesPackage”：“[\'acces\”，\'manusa\”]”}，{“salesPackage”：“[\'aa\”，\'bb\”]“}，{”salesPackage:“[\'jj\”，\'kk\”]”}这是我的编码值$salesPackage