Methods/steps
1. If you don't know the website of github, we can directly search github. After entering, we can log in or register an account first.
2. Then enter the key information of the open source project you are looking for in the search box at the top of the page, such as php-related projects.
3. You will get many related items after searching. Find the project you want, and then click Open.
4. After opening, there will be a standard description file in the project to explain the relevant situation of the project, such as how to use it, which library files are needed, the relevant description of the project and so on. Basically every project will have this standard description.
5. There will be a list of code files in the middle of the page. We can click Open to view the code directly online.
6. You can also click the download button in the upper right corner to download the code back to your local computer and study it slowly.
7. Or, if you are logged in, you can click the fork button above to create your own branch. Based on this project, we can modify the code on our own branch without affecting the original branch.