类oArenaAddTeam{public function \\uu construct（）{add\\u action（\'init\'，[$this，\'addTeamTournament\'）；}

function addTeamTournament()
{
    // add_action(\'add_meta_boxes\', \'addTeamTournament\');
    // $post = get_post_type();

    // echo \'you are here\';
     $author_id = get_current_user_id();

    $args = array(
        \'author\' => $author_id,
        \'post_type\' => \'team\',
        \'order\' => -1
    );

    $user = get_posts($args);
    // untill there i have the var dump ok with post author 
    // var_dump($user);
    // exit;
    if (isset($_POST[\'register-team-tournament\'])) 
    {
        echo \'there\';
        function init_metabox_tournament() 
        {
            add_meta_box(\'team_register_tournament\', \'\', \'team_register_tournament\', \'tournament\', \'normal\' );
        }   

        function team_tournament($post)
        {
            // var_dump($post);
            // die;
            $team_tournament = get_post_meta($post->ID, \'_team_register_tournament\', true);

        }

        add_action(\'save_post\', \'save_metabox_tournament\');

        function save_metabox_tournament($post_id)
        {
            if (isset($_POST[\'register-team-tournament\'])) 
            {
                update_post_meta($post_id, \'_team_register_tournament\', $user->post_title);
            }
        }
    } else {
        echo \'wrong\';
    }
} }




<form action="add-team" method="post">
<input type="submit" value="S\'inscrire" name="register-team-tournament"">
</form>