What are the potential pitfalls of assigning the same article to multiple projects in PHP?

Assigning the same article to multiple projects in PHP can lead to data inconsistency and confusion. To solve this issue, you can create a separate table to manage the relationship between articles and projects, allowing for a many-to-many relationship.

// Create a new table to manage the relationship between articles and projects
CREATE TABLE article_project (
    article_id INT,
    project_id INT,
    PRIMARY KEY (article_id, project_id),
    FOREIGN KEY (article_id) REFERENCES articles(id),
    FOREIGN KEY (project_id) REFERENCES projects(id)
);