What are some potential pitfalls of using multiple database connections in PHP code?

Using multiple database connections in PHP code can lead to increased complexity, potential performance issues, and difficulty in managing connections. To avoid these pitfalls, consider using a database connection pooling mechanism or a connection management library to handle multiple connections efficiently. 

// Example of using a connection management library to handle multiple database connections

use ConnectionManager\Manager;

$manager = new Manager();

$connection1 = $manager->getConnection('database1');
$connection2 = $manager->getConnection('database2');

// Use $connection1 and $connection2 for database operations

Keywords

database connections PHP code performance scalability maintenance

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