diff --git a/.travis.yml b/.travis.yml
index 62561e1..1c56fa1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -19,15 +19,16 @@ addons:
       - g++-multilib
       # Python
       - python3
+      # PHP
+      - php-cli
+      - php-mbstring
       # C#
       - mono-devel
       - mono-mcs
 
 install:
   # os-specific config
-  - if [ "${TRAVIS_OS_NAME}" = "linux" ]; then
-      phpenv global 7.0;
-    elif [ "${TRAVIS_OS_NAME}" = "osx" ]; then
+  - if [ "${TRAVIS_OS_NAME}" = "osx" ]; then
       brew update;
       brew install mono;
       brew install php;