Kaynak: https://stackoverflow.com/questions/36957904/media-queries-in-sass

$media_queries : (
    'sm'    : "(min-width: 768px)",
    'md'    : "(min-width: 992px)",
    'lg'   : "(min-width: 1200px)",
);

@mixin for_breakpoint($breakpoints) {
    $conditions : ();
    @each $breakpoint in $breakpoints {
        // If the key exists in the map
        $conditions: append(
            $conditions,
            #{inspect(map-get($media_queries, $breakpoint))},
            comma
        );
    }

    @media #{$conditions} {
        @content;
    }

}
.box {
    width: 50%;
    margin: 0 auto;
    background-color: red;
    text-align: center;
    padding: 15px;
    @include for_breakpoint('lg'){
        background-color: blue;
    }
    @include for_breakpoint('md'){
        background-color: orange;
    }
    @include for_breakpoint('sm'){
        background-color: purple;
    }
}
h1 {
    font-size: 48px;
    @include for_breakpoint('lg'){
        font-size: 38px;
    }
    @include for_breakpoint('md'){
        font-size: 24px;
        font-weight: normal;
    }
    @include for_breakpoint('sm'){
        font-size: 18px;
        font-weight: bold;
    }
}

$para = floatval("-1000.59");
$para = number_format($para, 2, ',', '.');
echo $para;

Bu kodu dene

$('.index-fav').click(function(e) {
    $( this ).toggleClass( "red" );
});

https://stackoverflow.com/questions/4778627/is-it-possible-to-import-a-whole-directory-in-sass-using-import?answertab=votes#tab-top

@import "foo/*"     // import all the files in the foo folder
@import "bar/**/*"  // import all the files in the bar tree

aradığı böyle bişeymi bilmiyorum ama biryerde böyle bir kod bulmuştum kendine göre ayarlayıp kullanabilirsin.

// $current_page şuanki sayfa 
// $total_records Toplam kayıt
// $total_pages Toplam sayfa sayısı
// $page_url url
function paginate($current_page, $total_records, $total_pages, $page_url)
{
    $pagination = '';
    if($total_pages > 0 && $total_pages != 1 && $current_page <= $total_pages){
        $pagination .= '<ul>';

        $right_links    = $current_page + 3;
        $previous       = $current_page - 1;
        $next           = $current_page + 1;
        $first_link     = true;

        if($current_page > 1){
			$previous_link = ($previous==0)?1:$previous;
            $pagination .= '<li class="pagination"><a href="'.$page_url.'?page=1" title="İlk">İlk</a></li>';
            $pagination .= '<li class="pagination"><a href="'.$page_url.'?page='.$previous_link.'" title="Önceki">Önceki</a></li>';
                for($i = ($current_page-2); $i < $current_page; $i++){
                    if($i > 0){
                        $pagination .= '<li class="pagination"><a href="'.$page_url.'?page='.$i.'">'.$i.'</a></li>';
                    }
                }
            $first_link = false;
        }

        if($first_link){
            $pagination .= '<li class="active pagination">'.$current_page.'</li>';
        }elseif($current_page == $total_pages){
            $pagination .= '<li class="active pagination">'.$current_page.'</li>';
        }else{
            $pagination .= '<li class="active pagination">'.$current_page.'</li>';
        }

        for($i = $current_page+1; $i < $right_links ; $i++){
            if($i<=$total_pages){
                $pagination .= '<li class="pagination"><a href="'.$page_url.'?page='.$i.'">'.$i.'</a></li>';
            }
        }
        if($current_page < $total_pages){
				$next_link = ($next > $total_pages)? $total_pages : $next;
                $pagination .= '<li class="pagination"><a href="'.$page_url.'?page='.$next_link.'" title="İleri">İleri</a></li>';
                $pagination .= '<li class="pagination"><a href="'.$page_url.'?page='.$total_pages.'" title="Son">Son</a></li>';
        }

        $pagination .= '</ul>';
    }
    return $pagination;
}

Ben biraz takıntılı birisiyim o yüzden bu şekilde yazardım :)

$register = $db->prepare("INSERT INTO `users` (`firstname`, `surname`, `username`, `email`, `password`, `about`, `gender`) VALUES (:firstname, :surname, :username, :email, :password, :about, :gender)");
$register->bindValue(':firstname', $firstname, PDO::PARAM_STR);
$register->bindValue(':surname', $surname, PDO::PARAM_STR);
$register->bindValue(':username', $username, PDO::PARAM_STR);
$register->bindValue(':email', $email, PDO::PARAM_STR);
$register->bindValue(':password', $password, PDO::PARAM_STR);
$register->bindValue(':about', $about, PDO::PARAM_STR);
$register->bindValue(':gender', $gender, PDO::PARAM_INT);
$insert = $register->execute();