This tutorial was created to be an example on how proper form validation may be done.
composer install
<VirtualHost *:80>
ServerName symfony-forms.local
DocumentRoot /var/www/symfony3_forms_tutorial/web
<Directory /var/www/symfony3_forms_tutorial/web>
DirectoryIndex app_dev.php
AllowOverride All
Order Allow,Deny
Allow from All
<IfModule mod_rewrite.c>
Options -MultiViews
RewriteEngine On
RewriteRule ^(.*)$ app_dev.php [QSA,L]
</IfModule>
</Directory>
ErrorLog /var/log/apache2/project_error.log
CustomLog /var/log/apache2/project_access.log combined
</VirtualHost>