get() all()的区别?

Question

$students=student::get();//获取模型所有数据？
dd($students);

与

$students=student::all();//查询模型所有数据？
dd($students);

这两者有什么区别呢？

Answer 1

What is the difference between get() all()? - PHP Chinese website Q&A - What is the difference between get() all()? - PHP Chinese website Q&A

Take a look around and learn.

Answer 2

查阅Model源码可得

public static function all($columns = ['*'])
{
    $columns = is_array($columns) ? $columns : func_get_args();
    $instance = new static;
    return $instance->newQuery()->get($columns);
}

而newQuery()得到的是是一个Builder类

all()不传参有默认值*，继而调用get();

get()位于Illuminate\Database\Eloquent\Builder中

同样有默认值*

public function get($columns = ['*'])
{
    $builder = $this->applyScopes();
    $models = $builder->getModels($columns);
    
    if (count($models) > 0) {
        $models = $builder->eagerLoadRelations($models);
    }
    return $builder->getModel()->newCollection($models);
}

故得证