Update .travis.yml

.travis.yml

@@ -1,15 +1,17 @@
 language: php
 
+dist: xenial
+
 php:
   - 5.6
   - 7.3
-  - 7.4snapshot
+  - 7.4
 
 env:
   matrix:
     - DB=mysql
   global:
-    - PHPUNIT=3.7.33
+    - PHPUNIT=5.7.19
 
 services:
   - memcached
@@ -20,31 +22,33 @@ services:
 matrix:
   fast_finish: true
   include:
+    - php: 5.3
+      env: DB=mysql PHPUNIT=3.7.33
+      dist: precise
+
     - php: 5.6
-      env: DB=pgsql
+      env: DB=pgsql PHPUNIT=3.7.33
 
     - php: 7.0
-      env: DB=sqlite
-
-    - php: 7.3
-      env: PHPCS=1
+      env: DB=sqlite PHPUNIT=3.7.33
 
     - php: 7.1
-      env: DB=mysql PHPUNIT=5.7.19
+      env: DB=sqlite
 
     - php: 7.2
-      env: DB=mysql PHPUNIT=5.7.19
+      env: DB=pgsql
 
     - php: 7.3
-      env: DB=mysql PHPUNIT=5.7.19
-  exclude:
+      env: DB=sqlite
+
     - php: 7.2
-      env: DB=mysql
-    - php: 7.3
-      env: DB=mysql
+      env: PHPCS=1
+
+  allow_failures:
+    - php: 7.4
 
 before_script:
-  - if [[ ${TRAVIS_PHP_VERSION:0:3} =~ ^7\.[23]$ ]] ; then pear config-set preferred_state snapshot && yes "" | pecl install mcrypt ; fi
+  - if [[ ${TRAVIS_PHP_VERSION:0:3} =~ ^7\.[234]$ ]] ; then pear config-set preferred_state snapshot && yes "" | pecl install mcrypt ; fi
   - composer require "phpunit/phpunit=$PHPUNIT"
   - echo "require_once 'vendors/autoload.php';" >> app/Config/bootstrap.php
   - sudo locale-gen de_DE