Cannot found the route without the app_dev.php - .htaccess

Question

When I go to my website like this :
example.com/ or
example.com/app_dev.php
That works fine.
But when I try to go to a different route like
example.com/api/route/option
I got an error 404, however when I go to
example.com/app_dev.php/api/route/option
That is working fine.
This is my .htaccess
<IfModule mod_rewrite.c>
Options +FollowSymlinks
RewriteEngine On
RewriteRule ^app_dev.php - [L]
RewriteRule ^app.php - [L]
RewriteCond %{REQUEST_FILENAME} !-f
#RewriteRule ^(.*)$ app.php [QSA,L]
RewriteRule ^(.*)$ app_dev.php [QSA,L]
</IfModule>
And this is my virtualhost
<VirtualHost *:80>
ServerName example.com
ServerAdmin my_mail
DocumentRoot /var/www/html/example/web/
DirectoryIndex app_dev.php
<Directory />
Options FollowSymLinks
AllowOverride All
</Directory>
<Directory /var/www/>
Options Indexes FollowSymLinks MultiViews
AllowOverride All
Order allow,deny
allow from all
</Directory>
ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
<Directory "/usr/lib/cgi-bin">
AllowOverride All
Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
Order allow,deny
Allow from all
</Directory>
ErrorLog ${APACHE_LOG_DIR}/error.log
# Possible values include: debug, info, notice, warn, error, crit,
# alert, emerg.
LogLevel warn
CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>
Got an idea ?
Thanks !

Answer 1

Your virtual host file doesnt enable overrides meaning your .htaccess file isnting being read. Try adding this to your virtual host file:
<Directory /var/www/html/example/web/>
AllowOverride None
Order Allow,Deny
Allow from All
</Directory>
You may also want to look into other setup options as documented here: http://symfony.com/doc/current/setup/web_server_configuration.html