Are there established standards for folder structure when using external libraries in PHP projects?

When using external libraries in PHP projects, it is important to maintain a consistent folder structure to ensure organization and ease of maintenance. While there are no strict standards set in stone, a common practice is to create a "vendor" directory at the root of your project where all external libraries are stored. Within the vendor directory, each library should have its own subdirectory to keep things organized. 

/project
    /vendor
        /library1
            /src
            /tests
        /library2
            /src
            /tests
    /src
    /tests
    index.php

Keywords

folder structure external libraries PHP projects standards established

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