Merge pull request php-curl-class#617 from zachborboa/php74

Add PHP 7.4 to continuous integration tests

Author: zachborboa

.travis.yml

@@ -25,6 +25,8 @@ matrix:
       dist: trusty
     - php: 7.3
       dist: trusty
+    - php: 7.4
+      dist: xenial
     - php: hhvm
       dist: trusty
     - php: hhvm-nightly

tests/before_script.sh

@@ -168,6 +168,8 @@ elif [[ "${TRAVIS_PHP_VERSION}" == "7.2" ]]; then
     php -S 127.0.0.1:8000 -t tests/PHPCurlClass/ &
 elif [[ "${TRAVIS_PHP_VERSION}" == "7.3" ]]; then
     php -S 127.0.0.1:8000 -t tests/PHPCurlClass/ &
+elif [[ "${TRAVIS_PHP_VERSION}" == "7.4" ]]; then
+    php -S 127.0.0.1:8000 -t tests/PHPCurlClass/ &
 elif [[ "${TRAVIS_PHP_VERSION}" == "hhvm" || "${TRAVIS_PHP_VERSION}" == "hhvm-nightly" ]]; then
     curl "https://nginx.org/keys/nginx_signing.key" | sudo apt-key add -
     echo "deb https://nginx.org/packages/mainline/ubuntu/ trusty nginx" | sudo tee -a /etc/apt/sources.list