diff --git a/.gitattributes b/.gitattributes
index 5a93a58c..ca0450d8 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -10,8 +10,8 @@
 /demo export-ignore
 /docs export-ignore
 /utilities export-ignore
+/docker-compose.yml export-ignore
 /.github export-ignore
-
 /.gitattributes export-ignore
 /.gitignore export-ignore
 /make-release.sh export-ignore
diff --git a/.gitignore b/.gitignore
index 5bd891e4..67f0dc51 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,7 +5,6 @@
 lexer/*.php
 lexer/*.php.bak
 lexer/*.out
-utilies/*.php
 
 # Dev
 phpunit*
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 00000000..8ba90328
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,39 @@
+version: "2"
+services:
+  base:
+    build:
+      context: .
+    volumes:
+      - .:/app
+    working_dir: /app
+    entrypoint: sh ./utilities/testrunners/run-test.sh
+  php71:
+    extends:
+      service: base
+    build:
+      dockerfile: ./utilities/testrunners/php71/Dockerfile
+  php72:
+    extends:
+      service: base
+    build:
+      dockerfile: ./utilities/testrunners/php72/Dockerfile
+  php73:
+    extends:
+      service: base
+    build:
+      dockerfile: ./utilities/testrunners/php73/Dockerfile
+  php74:
+    extends:
+      service: base
+    build:
+      dockerfile: ./utilities/testrunners/php74/Dockerfile
+  php80:
+    extends:
+      service: base
+    build:
+      dockerfile: ./utilities/testrunners/php80/Dockerfile
+  php81:
+    extends:
+      service: base
+    build:
+      dockerfile: ./utilities/testrunners/php81/Dockerfile
diff --git a/utilities/testrunners/php71/Dockerfile b/utilities/testrunners/php71/Dockerfile
new file mode 100644
index 00000000..2ae6c1ae
--- /dev/null
+++ b/utilities/testrunners/php71/Dockerfile
@@ -0,0 +1,10 @@
+FROM php:7.1-cli
+
+## Basic utilities
+RUN apt-get update -yqq && apt-get install -y curl apt-utils git zip unzip
+
+## Composer
+COPY ./utilities/testrunners/shared/install-composer.sh /root/install-composer.sh
+WORKDIR /root
+RUN sh ./install-composer.sh
+RUN mv ./composer.phar /usr/local/bin/composer
diff --git a/utilities/testrunners/php72/Dockerfile b/utilities/testrunners/php72/Dockerfile
new file mode 100644
index 00000000..25f1688d
--- /dev/null
+++ b/utilities/testrunners/php72/Dockerfile
@@ -0,0 +1,10 @@
+FROM php:7.2-cli
+
+## Basic utilities
+RUN apt-get update -yqq && apt-get install -y curl apt-utils git zip unzip
+
+## Composer
+COPY ./utilities/testrunners/shared/install-composer.sh /root/install-composer.sh
+WORKDIR /root
+RUN sh ./install-composer.sh
+RUN mv ./composer.phar /usr/local/bin/composer
diff --git a/utilities/testrunners/php73/Dockerfile b/utilities/testrunners/php73/Dockerfile
new file mode 100644
index 00000000..e276bdcd
--- /dev/null
+++ b/utilities/testrunners/php73/Dockerfile
@@ -0,0 +1,10 @@
+FROM php:7.3-cli
+
+## Basic utilities
+RUN apt-get update -yqq && apt-get install -y curl apt-utils git zip unzip
+
+## Composer
+COPY ./utilities/testrunners/shared/install-composer.sh /root/install-composer.sh
+WORKDIR /root
+RUN sh ./install-composer.sh
+RUN mv ./composer.phar /usr/local/bin/composer
diff --git a/utilities/testrunners/php74/Dockerfile b/utilities/testrunners/php74/Dockerfile
new file mode 100644
index 00000000..d6fb4c39
--- /dev/null
+++ b/utilities/testrunners/php74/Dockerfile
@@ -0,0 +1,10 @@
+FROM php:7.4-cli
+
+## Basic utilities
+RUN apt-get update -yqq && apt-get install -y curl apt-utils git zip unzip
+
+## Composer
+COPY ./utilities/testrunners/shared/install-composer.sh /root/install-composer.sh
+WORKDIR /root
+RUN sh ./install-composer.sh
+RUN mv ./composer.phar /usr/local/bin/composer
diff --git a/utilities/testrunners/php80/Dockerfile b/utilities/testrunners/php80/Dockerfile
new file mode 100644
index 00000000..ae440e9d
--- /dev/null
+++ b/utilities/testrunners/php80/Dockerfile
@@ -0,0 +1,10 @@
+FROM php:8.0-cli
+
+## Basic utilities
+RUN apt-get update -yqq && apt-get install -y curl apt-utils git zip unzip
+
+## Composer
+COPY ./utilities/testrunners/shared/install-composer.sh /root/install-composer.sh
+WORKDIR /root
+RUN sh ./install-composer.sh
+RUN mv ./composer.phar /usr/local/bin/composer
diff --git a/utilities/testrunners/php81/Dockerfile b/utilities/testrunners/php81/Dockerfile
new file mode 100644
index 00000000..46f99559
--- /dev/null
+++ b/utilities/testrunners/php81/Dockerfile
@@ -0,0 +1,10 @@
+FROM php:8.1-cli
+
+## Basic utilities
+RUN apt-get update -yqq && apt-get install -y curl apt-utils git zip unzip
+
+## Composer
+COPY ./utilities/testrunners/shared/install-composer.sh /root/install-composer.sh
+WORKDIR /root
+RUN sh ./install-composer.sh
+RUN mv ./composer.phar /usr/local/bin/composer
diff --git a/utilities/testrunners/run-test.sh b/utilities/testrunners/run-test.sh
new file mode 100755
index 00000000..cca96f5e
--- /dev/null
+++ b/utilities/testrunners/run-test.sh
@@ -0,0 +1,2 @@
+#!/bin/sh
+composer update && php ./vendor/phpunit/phpunit/phpunit
diff --git a/utilities/testrunners/shared/install-composer.sh b/utilities/testrunners/shared/install-composer.sh
new file mode 100644
index 00000000..585031d9
--- /dev/null
+++ b/utilities/testrunners/shared/install-composer.sh
@@ -0,0 +1,17 @@
+#!/bin/sh
+
+EXPECTED_CHECKSUM="$(php -r 'copy("https://composer.github.io/installer.sig", "php://stdout");')"
+php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
+ACTUAL_CHECKSUM="$(php -r "echo hash_file('sha384', 'composer-setup.php');")"
+
+if [ "$EXPECTED_CHECKSUM" != "$ACTUAL_CHECKSUM" ]
+then
+    >&2 echo 'ERROR: Invalid installer checksum'
+    rm composer-setup.php
+    exit 1
+fi
+
+php composer-setup.php --quiet
+RESULT=$?
+rm composer-setup.php
+exit $RESULT
\ No newline at end of file