diff --git a/.travis.yml b/.travis.yml
index c2f385b..824920e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,7 @@ language: php
 
 php:
   - 7.1
+  - 7.2
 
 before_install:
   - nvm install 8
diff --git a/README.md b/README.md
index 668c500..f85fe66 100644
--- a/README.md
+++ b/README.md
@@ -208,6 +208,42 @@ To run examples, you need to run ethereum blockchain local (testrpc).
 
 If you are using docker as development machain, you can try [ethdock](https://github.com/sc0vu/ethdock) to run local ethereum blockchain, just simply run `docker-compose up -d testrpc` and expose the `8545` port.
 
+# Develop
+
+### Local php cli installed
+
+1. Clone the repo and install packages.
+```
+git clone https://github.com/sc0Vu/web3.php.git && cd web3.php && composer install
+```
+
+2. Run test script.
+```
+vendor/bin/phpunit
+```
+
+### Docker container
+
+1. Clone the repo and run docker container.
+```
+git clone https://github.com/sc0Vu/web3.php.git
+```
+
+2. Copy web3.php to web3.php/docker/app directory and start container.
+```
+cp files docker/app && docker-compose up -d php
+```
+
+3. Enter php container and install packages.
+```
+docker-compose exec php ash
+```
+
+4. Run test script
+```
+vendor/bin/phpunit
+```
+
 # API
 
 Todo.
diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
new file mode 100644
index 0000000..730dbe9
--- /dev/null
+++ b/docker/docker-compose.yml
@@ -0,0 +1,11 @@
+version: '2'
+
+services:
+
+    php:
+        build:
+            context: ./php
+            dockerfile: Dockerfile-72
+        volumes:
+            - ./app:/app
+        tty: true
diff --git a/docker/php/Dockerfile-71 b/docker/php/Dockerfile-71
new file mode 100644
index 0000000..4b87cf4
--- /dev/null
+++ b/docker/php/Dockerfile-71
@@ -0,0 +1,17 @@
+FROM php:7.1.14-alpine
+
+MAINTAINER Peter Lai <alk03073135@gmail.com>
+
+ADD composer-setup.php composer-setup.php
+
+RUN apk update && \
+    apk add git
+
+# Install nodejs
+# Run apk add --update nodejs nodejs-npm
+
+# Install composer
+RUN php composer-setup.php && \
+    php composer-setup.php --install-dir=/usr/bin --filename=composer
+
+WORKDIR /app
\ No newline at end of file
diff --git a/docker/php/Dockerfile-72 b/docker/php/Dockerfile-72
new file mode 100644
index 0000000..d72919b
--- /dev/null
+++ b/docker/php/Dockerfile-72
@@ -0,0 +1,17 @@
+FROM php:7.2.2-alpine
+
+MAINTAINER Peter Lai <alk03073135@gmail.com>
+
+ADD composer-setup.php composer-setup.php
+
+RUN apk update && \
+    apk add git
+
+# Install nodejs
+# Run apk add --update nodejs nodejs-npm
+
+# Install composer
+RUN php composer-setup.php && \
+    php composer-setup.php --install-dir=/usr/bin --filename=composer
+
+WORKDIR /app
\ No newline at end of file
diff --git a/docker/php/composer-setup.php b/docker/php/composer-setup.php
new file mode 100644
index 0000000..263ad1a
--- /dev/null
+++ b/docker/php/composer-setup.php
@@ -0,0 +1,5 @@
+<?php
+
+copy('https://getcomposer.org/installer', 'composer-setup.php');
+
+if (hash_file('SHA384', 'composer-setup.php') === '544e09ee996cdf60ece3804abc52599c22b1f40f4323403c44d44fdfdd586475ca9813a858088ffbc1f233e9b180f061') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;
\ No newline at end of file