Редиректы с маршрутизацией статического сайта

.htaccess

DirectoryIndex index.php
RewriteEngine On
RewriteBase /

# Rewrite www.example.com -> example.com
RewriteCond %{HTTP_HOST} .
RewriteCond %{HTTP_HOST} ^www.(.*)$ [NC]
RewriteRule ^(.*)$ https://%1/$1 [R=301,L]

# Force rewrite to https for every host
RewriteCond %{HTTPS} !=on [OR]
RewriteCond %{SERVER_PORT} !^443
RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

#404 error page
ErrorDocument 404 /404.html

# remove ////
RewriteCond %{REQUEST_URI} ^(.*?)\/{2,}(.*?)$
RewriteRule . %1/%2 [L,R=301]
RewriteCond %{THE_REQUEST} //
RewriteRule .* /$0 [R=301,L]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php?q=$1 [L,QSA]

# remove index.html
RewriteCond %{REQUEST_METHOD} =GET
RewriteCond %{REQUEST_URI} ^(.*)/index\.html$
RewriteRule ^(.*)$ %1/ [R=301,L]

# serves a .webp image instead of jpg/png
RewriteCond %{HTTP_ACCEPT} image/webp
RewriteCond %{REQUEST_FILENAME} ^(.+)\.(jpe?g|png)$
RewriteCond %1\.webp -f
RewriteRule ^(.+)\.(jpe?g|png)$ $1.webp [T=image/webp,E=accept:1]

AddType image/webp .webp

# For servers that support output compression, you should pick up a bit of
# speed by un-commenting the following lines.
php_flag zlib.output_compression On
php_value zlib.output_compression_level 7

index.php

<?php
// функция возврата данных запрошенной страницы
function returnRequest($uri){
    return file_get_contents(dirname(__FILE__) . '/' . ltrim($uri, '/'));
}

// функция редиректов
// для добавления нового редиректа просто добавьте аналогичную строку в вызов функции ниже, например:
// case 'старый/урл.html': $out_uri = 'новый-урл.html'; break;
function getRedirect($uri){
    $out_uri = '';
    switch($uri){
        case 'services/tech/main.html': $out_uri = 'vyvoz-bytovoj-tekhniki-besplatno.html'; break;
        case 'services/furniture/main.html': $out_uri = 'vyvoz-mebeli-besplatno.html'; break;
        case 'services/trash/batteries.html': $out_uri = 'vyvoz-chugunnyh-batarej-besplatno.html'; break;
        case 'services/electro/main.html': $out_uri = 'vyvoz-elektroniki-besplatno.html'; break;
        case 'services/trash/main.html': $out_uri = 'vyvoz-krupnogabaritnogo-musora-besplatno.html'; break;
        case 'services/trash/pallets.html': $out_uri = 'vyvoz-derevyannyh-poddonov-besplatno.html'; break;
        case 'services/trash/baths.html': $out_uri = 'vyvoz-chugunnoj-vanny-besplatno.html'; break;
        case 'services/trash/windows.html': $out_uri = 'vyvoz-okon-besplatno.html'; break;
        case 'services/waste/boards.html': $out_uri = 'vyvoz-dosok-besplatno.html'; break;
        case 'services/things/extinguishers.html': $out_uri = 'vyvoz-ognetushitelej-besplatno.html'; break;
        case 'services/things/books.html': $out_uri = 'vyvoz-knig-besplatno.html'; break;
        case 'services/tech/microwaves.html': $out_uri = 'vyvoz-mikrovolnovok-besplatno.html'; break;
        case 'services/things/tires.html': $out_uri = 'vyvoz-shin-besplatno.html'; break;
        case 'services/electro/lamps.html': $out_uri = 'vyvoz-lamp-besplatno.html'; break;
        case 'services/tech/washing_machines.html': $out_uri = 'vyvoz-stiralnyh-mashin-besplatno.html'; break;
        case 'services/trash/piano.html': $out_uri = 'vyvoz-pianino-besplatno.html'; break;
        case 'services/trash/doors.html': $out_uri = 'vyvoz-zheleznyh-dverej-besplatno.html'; break;
        case 'services/things/clothes.html': $out_uri = 'vyvoz-odezhdy-besplatno.html'; break;
        case 'services/electro/computers.html': $out_uri = 'vyvoz-kompyuterov-besplatno.html'; break;
        case 'services/furniture/cabinets.html': $out_uri = 'vyvoz-shkafov-besplatno.html'; break;
        case 'services/furniture/walls.html': $out_uri = 'vyvoz-stenok-i-servantov-besplatno.html'; break;
        case 'services/furniture/beds.html': $out_uri = 'vyvoz-krovatej-besplatno.html'; break;
        case 'services/electro/tvs.html': $out_uri = 'vyvoz-televizorov-besplatno.html'; break;
        case 'services/tech/conditioners.html': $out_uri = 'vyvoz-kondicionerov-besplatno.html'; break;
        case 'services/tech/dishwashers.html': $out_uri = 'vyvoz-posudomoechnyh-mashin-besplatno.html'; break;
        case 'services/trash/metal.html': $out_uri = 'vyvoz-metalloloma-besplatno.html'; break;
        case 'services/things/main.html': $out_uri = 'vyvoz-nenuzhnyh-veshchej-besplatno.html'; break;
        case 'services/furniture/sofas.html': $out_uri = 'vyvoz-divanov-besplatno.html'; break;
        case 'services/electro/monitors.html': $out_uri = 'vyvoz-monitorov-besplatno.html'; break;
        case 'services/trash/bowls.html': $out_uri = 'vyvoz-unitazov-besplatno.html'; break;
        case 'services/waste/paper.html': $out_uri = 'vyvoz-makulatury-besplatno.html'; break;
        case 'services/furniture/mattresses.html': $out_uri = 'vyvoz-matrasov-besplatno.html'; break;
        case 'services/waste/recyclables.html': $out_uri = 'vyvoz-vtorsyrya-besplatno.html'; break;
        case 'services/waste/plastic.html': $out_uri = 'vyvoz-plastika-besplatno.html'; break;
        case 'services/waste/main.html': $out_uri = 'vyvoz-othodov-besplatno.html'; break;
        case 'services/tech/heaters.html': $out_uri = 'vyvoz-vodonagrevatelej-besplatno.html'; break;
        case 'services/electro/cartridges.html': $out_uri = 'vyvoz-kartridzhej-besplatno.html'; break;
        case 'services/waste/brick.html': $out_uri = 'vyvoz-betona-i-kirpicha-besplatno.html'; break;
        case 'services/waste/glass.html': $out_uri = 'vyvoz-stekla-besplatno.html'; break;
        case 'services/waste/gbi.html': $out_uri = 'vyvoz-zhbi-besplatno.html'; break;
        case 'services/tech/sewing_machines.html': $out_uri = 'vyvoz-shvejnyh-mashin-besplatno.html'; break;
        case 'services/main.html': $out_uri = 'uslugi-po-vyvozu-besplatno.html'; break;
        case 'services/tech/electric_stoves.html': $out_uri = 'vyvoz-elektroplit-besplatno.html'; break;
        case 'services/tech/gas_stoves.html': $out_uri = 'vyvoz-gazovyh-plit-besplatno.html'; break;
        case 'services/tech/refrigerators.html': $out_uri = 'vyvoz-holodilnikov-besplatno.html'; break;
    }
    return file_exists(dirname(__FILE__) . '/' . ltrim($out_uri, '/'))?ltrim($out_uri, '/'):'';
}

// ниже правки вносить только обдуманно
$get_url = parse_url($_SERVER['REQUEST_URI']);
$uri = 'index.html';
$args = '';
if(isset($get_url['query']) && $get_url['query']){
    $args = '?' . $get_url['query'];
}
if($_GET['q']){
    $uri = (string)$_GET['q'];
    if(file_exists(dirname(__FILE__) . '/' . ltrim($uri, '/'))){
        die( returnRequest($uri) );
    }
    else{
        if( $uri = getRedirect($uri) ) {
            http_response_code(301);
            header("Location: {$_SERVER['REQUEST_SCHEME']}://{$_SERVER['HTTP_HOST']}/{$uri}{$args}");
            exit;
        }
        http_response_code(404);
        $uri = '404.html';
        die( returnRequest($uri) );
    }
}
if(preg_match('/\/index/iu', $get_url['path'])){
    http_response_code(301);
    header("Location: {$_SERVER['REQUEST_SCHEME']}://{$_SERVER['HTTP_HOST']}{$args}");
    exit;
}
die( returnRequest($uri) );