Abandon a few versions of PHP. Long live PHP5!

.travis.yml

@@ -5,12 +5,6 @@ services:
 
 matrix:
   include:
-    - php: 5.4
-      dist: bionic
-    - php: 5.5
-      dist: bionic
-    - php: 5.6
-      dist: bionic
     - php: 7.2
       dist: bionic
     - php: 7.3

tests/tools/cacti.conf

@@ -0,0 +1,36 @@
+<VirtualHost *:80>
+	ServerAdmin webmaster@localhost
+	DocumentRoot /var/www/html
+
+	ErrorLog ${APACHE_LOG_DIR}/error.log
+	CustomLog ${APACHE_LOG_DIR}/access.log combined
+</VirtualHost>
+
+<IfModule mod_proxy_fcgi.c>
+  <Files ~ .(?i:inc|html|htm)$>
+    SetHandler proxy:unix:///run/php/php-fpm.sock|fcgi://127.0.0.1:9000
+  </Files>
+</IfModule>
+
+Alias /cacti /var/www/html/cacti
+
+<Directory /var/www/html/cacti>
+	Options +FollowSymLinks
+	AllowOverride None
+	Require all granted
+
+	AddType application/x-httpd-php .php
+
+	<IfModule mod_php7.c>
+		php_flag magic_quotes_gpc Off
+		php_flag short_open_tag On
+		php_flag register_globals Off
+		php_flag register_argc_argv On
+		php_flag track_vars On
+		# this setting is necessary for some locales
+		php_value mbstring.func_overload 0
+		php_value include_path .
+	</IfModule>
+
+	DirectoryIndex index.php
+</Directory>