How to use Travis CI with PHP programming?

With the development of the Internet, more and more developers choose to use CI (Continuous Integration) tools to make the software development process more automated and efficient. Travis CI, a popular CI tool, is a free continuous integration service that integrates with GitHub and many other code hosting services, including Github repositories that support PHP. In this article, we will introduce how to use Travis CI with PHP programming.

1. Create a GitHub repository

First, we need to create a GitHub repository to store our PHP code. GitHub will become the central location where we ultimately deploy our code. To create a new GitHub repository, log in to GitHub and follow these steps:

• Click on the number in the upper right corner

• Select "New Code Repository"

• Enter the repository name and click "Create Repository"

2. Set up Travis CI

Before we start setting up Travis CI, we need to check whether our code already meets the requirements of Travis CI. This usually means we need to create a .travis.yml file in the project root directory. Then, we must put a Travis CI hook on the code repository page. Here we need to visit the Travis CI official website and click "Sign in with GitHub" (log in with GitHub account as credentials) to enter our GitHub account. At this point, we will see a Travis CI Dashboard, clicking "Settings" will allow us to grant Travis permission to run our repository through GitHub. Select the appropriate item and enable Travis' switch.

3. Create the .travis.yml file

We create the .travis.yml file in the root directory of the warehouse. In this file we need to specify the compile script command that Travis CI should run and specify the PHP version. Here is an example of a basic .travis.yml file:

language: php

php:

• 7.3

script:

• phpunit tests

What this code means is that we should run unit tests using PHP 7.3 version on Travis CI, and the tests are run by using phpunit.

4. Run the sample test

Now we are ready to run the test. We will write some PHP unit tests on our local machine and then push them to our GitHub repository. Travis CI will run the test scripts on our regression library. If all tests pass, Travis will display a green tick on GitHub. If any test fails, Travis will display a red cross symbol.

The following is an example of a PHP unit test:

class Math
{

1c5534a7a4c2d69973f71f2d74100002

}

The above code is a very simple mathematical calculation test. We compare the result of executing $math->add(2, 2) with the expected result of 4.

5. Release

Now, if you see a green tick on Travis CI, your test tests have all passed. In this step, you can deploy your PHP code to a production environment. The most common is to use git commands to push code to a public or private code repository.

Summary

In the process of using Travis CI, we have successfully completed several basic tasks. We have created a new GitHub repository and linked it to Travis CI, adding the required content for Travis CI in the configuration file. In the example of this article, we use PHP to write unit tests through Travis CI. This way, we can ensure the quality of our code and run our collection of tests automatically. If needed, we can also extend Travis CI to other tasks such as automated builds, updating documentation, etc.

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