How to connect 'users' table with 'post' table in laravel?

Question

This is my structure, I want to connect these two tables in laravel, How to do it?

Post Table:

public function up()
{
    Schema::create('post', function (Blueprint $table) {
        $table->increments('post_id');
        $table->string('post');
        $table->integer('time');
        $table->string('host');
        $table->integer('vote_up');
        $table->integer('vote_down');
        $table->foreign('id_fk')->references('id')->on('users');
        $table->timestamps();
    });
}

Users Table:

public function up()
{
    Schema::create('users', function (Blueprint $table) {
        $table->increments('id');
        $table->string('name');
        $table->date('dob');
        $table->string('email')->unique();
        $table->string('password');
        $table->rememberToken();
        $table->timestamps();
    });
}

Answer 1

I presume you are just pasting in migrations but you do need to have yours users table created before your posts table. I would change

$table->foreign('id_fk')->references('id')->on('users');

to

$table->foreign('user_id')->references('id')->on('users');

Because Laravel can infer foreign keys:

Eloquent determines the default foreign key name by examining the name of the relationship method and suffixing the method name with _id. However, if the foreign key on the Post model is not user_id, you may pass a custom key name as the second argument to the belongsTo method

And then all you need in your models is the following:

class Post extends Model
{
    /**
     * Get the user that owns the post.
     */
    public function user()
    {
        return $this->belongsTo('App\User');
        // if you want to keep your current structure:
        // return $this->belongsTo('App\User', 'id_fk', 'id);
    }
}

and

class User extends Model
{
    /**
     * Get the post for a user.
     */
    public function posts()
    {
        return $this->hasMany('App\Post');
        // if you want to keep your current structure:
        // return $this->belongsTo('App\Post', 'id_fk');
    }
}

You can read more about setting up relationships here.