Second try adding PHP versions

Author: petehayes102

.travis.yml

@@ -2,10 +2,6 @@ sudo: required
 dist: trusty
 language: rust
 
-php:
-  - '5.6'
-  - '7.0'
-
 rust:
   - stable
   - beta
@@ -15,6 +11,7 @@ addons:
   apt:
     sources:
       - sourceline: 'ppa:chris-lea/libsodium'
+      - sourceline: 'ppa:ondrej/php'
       - sourceline: 'deb http://ppa.launchpad.net/chris-lea/libsodium/ubuntu trusty main'
       - sourceline: 'deb-src http://ppa.launchpad.net/chris-lea/libsodium/ubuntu trusty main'
     packages:
@@ -23,6 +20,8 @@ addons:
       - libdw-dev
       - binutils-dev
       - libsodium-dev
+      - php5.6
+      - php7.0
 
 before_script:
   - |