function renderBossComposition($current_boss){
      $str = file_get_contents('./content/benchmarks/compositions.json');
      $json_compositions = json_decode($str, true);
      for ($i = 1; $i <= 10; $i++) {
        $p_subtext[$i] = $json_compositions[$current_boss][0][$i]["subtext"];
        $p_profession[$i] = $json_compositions[$current_boss][0][$i]["profession"];
        $p_specialization[$i] = $json_compositions[$current_boss][0][$i]["specialization"];
        $p_build[$i] = $json_compositions[$current_boss][0][$i]["build"];
        $p_subgroup[$i] = $json_compositions[$current_boss][0][$i]["subgroup"];
      }
        echo'
        <div class="card">
            <div class="card-header clr-benchmarks">
                Composition
            </div>
            <div class="card-body text-center">
        ';
        //iterate through all possible subgroups 1-10
        for ($i = 1; $i <= 10; $i++) {
            $subgroupexists=false;
            //iterate through all players 1-10
            for ($j = 1; $j <= 10; $j++) {
                 if ($p_subgroup[$j] == $i){
                     //check if first time
                     if (!$subgroupexists){
                         $subgroupexists = true;
                         echo '
                         <div class="row">
                            <div class="col-2">
                                Group '.$i.'
                            </div>
                        ';
                     }
                     echo '<div class="col-2">';
                    if ($p_profession[$j] == "any") { echo '<a name="any">';}
                    else{ echo '<a href="/raids/'.$p_profession[$j].'/'.systemStringToURL($p_build[$j]).'/">';}
                    echo'
                            <img src="/assets/icons/professions/'.$p_specialization[$j].'-dark.png" alt="" class="img-fluid benchmarks-composition-icon">
                            </a>
                            <span class="benchmarks-composition-title">'.$p_subtext[$j].'</span>
                        </div>
                    ';
                 }
            }
            //close subgroup div
            if ($subgroupexists){
                echo '
                    </div>
                <hr>
                ';
            }
        }
        //close group composition divs
        echo '
            </div>
        </div>
        ';
 }