Multilanguage script help

This is my first question I hope I can make myself understood, what happens is that I'm doing a small script in php and mysql, something similar to plugin polylang for wordpress, so far all right only I need that in the table where I show the records of the published contents show me this way:

• es = Spanish
• en = English
• pt = Portugues
• (+) = has not been created yet.

table view with records already entered, where I want it to look like that.

• id - title - es - en - pt
• 6 - English - + - 6 - +
• 5 - Adeus - 3 - 4 - 5
• 4 - Bye - 3 - 4 - 5
• 3 - Goodbye - 3 - 4 - 5
• 2 - Hello - 1 - 2 - +
• 1 - Hello - 1 - 2 - +

As you can see in the image, I am armed with the table and I have been able to show the ids if they are registered with a check, now I need to show the other buttons, in id = 1 in the "in" column I need to show a button with a pencil icon being its id = 2 and that it takes me to its edition, and in the column of the language "pt" to show the button with the icon + since it is not yet registered that language related to the record 1 and 2, that takes me even empty form to be able to add it, in register 2 the column of the language "is" show me a button with a pencil since that one is already added and above is the father of record 2, hopefully let me understand.

here are my BD tables:

CREATE TABLE 'posts' (
  'id' int(11) NOT NULL AUTO_INCREMENT,
  'id_categoria' int(11) NOT NULL,
  'imagen' varchar(45) DEFAULT NULL,
  'estado' int(11) DEFAULT NULL,
  'fecha_registro' datetime DEFAULT NULL,
  'fecha_edicion' datetime DEFAULT NULL,
  'id_usuario' int(11) NOT NULL,
  'id_sibling' int(11) DEFAULT NULL,
  'post_estado' int(11) DEFAULT NULL,
  PRIMARY KEY ('id')
) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8;

    CREATE TABLE 'post_langs' (
  'id' int(11) NOT NULL AUTO_INCREMENT,
  'id_post' int(11) DEFAULT NULL,
  'id_lang' int(11) DEFAULT NULL,
  'titulo' varchar(255) DEFAULT NULL,
  'contenido' text,
  'slug' varchar(255) DEFAULT NULL,
  PRIMARY KEY ('id')
) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8;

CREATE TABLE 'langs' (
  'id' int(11) NOT NULL AUTO_INCREMENT,
  'codigo' varchar(2) DEFAULT NULL,
  'nombre' varchar(20) DEFAULT NULL,
  PRIMARY KEY ('id')
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;

and in this way I showed it in the table

    <tbody>
                    {foreach item=datos from=$blog}
                    <tr>
                        <td>{$datos.titulo}</td>
                        <td>{$datos.usuario}</td>
                        <td>{$datos.nombre}</td>
                        {foreach item=lang from=$langs}
                        <td>
                            {if $datos.id_lang == $lang.id}
                            <a class="btn btn-info btn-sm" href="blog/editar/{$datos.id}">
                                <i class="fa fa-check"></i>
                            </a>
                            {elseif $datos.id_sibling !== 0 && $lang.id_lang}
                            <a class="btn btn-secondary btn-sm" href="blog/nuevo">
                                <i class="fa fa-plus"></i>
                            </a>
                            {/if}
                        </td>
                        {/foreach}
                        <td>{date("d/m/Y", strtotime($datos.fecha_registro))}</td>
                    </tr>
                    {/foreach}
                </tbody>

Thanks for your prompt help