Symfony full .htaccess file

.htaccess

# For a symfony application to work properly, you MUST store this .htaccess in
# the same directory as your front controller, index.php, in a standard symfony
# web application is under the "public" project subdirectory.

# Use the front controller as index file.
DirectoryIndex index.php

# Uncomment the following line if you install assets as symlinks or if you 
# experience problems related to symlinks when compiling LESS/Sass/CoffeScript.
# Options +FollowSymlinks

# Disabling MultiViews prevents unwanted negotiation, e.g. "/index" should not resolve
# to the front controller "/index.php" but be rewritten to "/index.php/index".
<IfModule mod_negotiation.c>
    Options -MultiViews
</IfModule>

<IfModule mod_rewrite.c>
    RewriteEngine On

    # This RewriteRule is used to dynamically discover the RewriteBase path.
    # See https://httpd.apache.org/docs/current/mod/mod_rewrite.html#rewriterule
    # Here we will compare the stripped per-dir path *relative to the filesystem
    # path where the .htaccess file is read from* with the URI of the request.
    # 
    # If a match is found, the prefix path is stored into an ENV var that is later 
    # used to properly prefix the URI of the front controller index.php.
    # This is what makes it possible to host a Symfony application under a subpath,
    # such as example.com/subpath

    # The convoluted rewrite condition means:
    #   1. Match all current URI in the RewriteRule and backreference it using $0
    #   2. Strip the request uri the per-dir path and use ir as REQUEST_URI.
    #      This is documented in https://bit.ly/3zDm3SI ("What is matched?")
    #   3. Evaluate the RewriteCond, assuming your DocumentRoot is /var/www/html,
    #      this .htaccess is in the /var/www/html/public dir and your request URI
    #      is /public/hello/world:
    #      * strip per-dir prefix: /var/www/html/public/hello/world -> hello/world
    #      * applying pattern '.*' to uri 'hello/world'
    #      * RewriteCond: input='/public/hello/world::hello/world' pattern='^(/.+)/(.*)::\\2$' => matched
    #   4. Execute the RewriteRule:
    #      * The %1 in the RewriteRule flag E=BASE:%1 refers to the first group captured in the RewriteCond ^(/.+)/(.*)
    #      * setting env variable 'BASE' to '/public'
    RewriteCond %{REQUEST_URI}::$0 ^(/.+)/(.*)::\2$
    RewriteRule .* - [E=BASE:%1]

    # Sets the HTTP_AUTHORIZATION header removed by Apache
    RewriteCond %{HTTP:Authorization} .+
    RewriteRule ^ - [E=HTTP_AUTHORIZATION:%0]

    # Removes the /index.php/ part from a URL, if present
    RewriteCond %{ENV:REDIRECT_STATUS} =""
    RewriteRule ^index\.php(?:/(.*)|$) %{ENV:BASE}/$1 [R=301,L]

    # If the requested filename exists, simply serve it.
    # Otherwise rewrite all other queries to the front controller.
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteRule ^ %{ENV:BASE}/index.php [L]
</IfModule>

<IfModule !mod_rewrite.c>
    <IfModule mod_alias.c>
        # When mod_rewrite is not available, we instruct a temporary redirect 
        # to the front controller explicitly so that the website
        RedirectMatch 307 ^/$ /index.php/
    </IfModule>
</IfModule>

for symfony 5* it's like that:

RewriteEngine On

# Redirect to URI without front controller to prevent duplicate content
# (with and without `/app.php`). Only do this redirect on the initial
# rewrite by Apache and not on subsequent cycles. Otherwise we would get an
# endless redirect loop (request -> rewrite to front controller ->
# redirect -> request -> ...).
# So in case you get a "too many redirects" error or you always get redirected
# to the startpage because your Apache does not expose the REDIRECT_STATUS
# environment variable, you have 2 choices:
# - disable this feature by commenting the following 2 lines or
# - use Apache >= 2.3.9 and replace all L flags by END flags and remove the
#   following RewriteCond (best solution)
RewriteCond %{ENV:REDIRECT_STATUS} ^$
RewriteRule ^index\.php(/(.*)|$) %{CONTEXT_PREFIX}/$2 [R=301,L]

# If the requested filename exists, simply serve it.
# We only want to let Apache serve files and not directories.
RewriteCond %{REQUEST_FILENAME} -f
RewriteRule .? - [L]

# cache-bust assets url rewrite
# Example format: /cpv-10/js/test123.js -> /js/test123.js
# This allows us to change the asset version and "bust" intermediate caches (like varnish)
# See http://symfony.com/doc/current/reference/configuration/framework.html#ref-framework-assets-version
# See http://symfony.com/doc/current/reference/configuration/framework.html#assets-version-format
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^cpv-\d+\/(.+)$ $1 [L]

RewriteCond %{REQUEST_FILENAME} -f
RewriteRule ^(.*)$ index.php [QSA,L]

# The following rewrites all other queries to the front controller. The
# condition ensures that if you are using Apache aliases to do mass virtual
# hosting, the base path will be prepended to allow proper resolution of the
# app.php file; it will work in non-aliased environments as well, providing
# a safe, one-size fits all solution.
RewriteCond %{REQUEST_URI}::$1 ^(/.+)(.+)::\2$
RewriteRule ^(.*) - [E=BASE:%1]
RewriteRule .? %{ENV:BASE}index.php [L]

@mitchobrian

I tried this config but i am getting the following error:

AH00124: Request exceeded the limit of 10 internal redirects due to probable configuration error. Use 'LimitInternalRecursion' to increase the limit if necessary. Use 'LogLevel debug' to get a backtrace.

@bastoune I updated the gist with a shorter and more updated version, based on the official Symfony Apache Pack

Working on 2023 !

You saved my life (or at least my brain) ! thank you !!

I added the following so it will also go to any existing directory in public: (if that is what you want your application to do)

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^ %{ENV:BASE}/index.php [L]

Thank you, that saved precious time!

Maybe a nice addition would be a redirect of http to https, perhaps commented out by default