What are some common issues with encoding and character sets in PHP when interacting with databases?

One common issue with encoding and character sets in PHP when interacting with databases is mismatched character sets between the database and the PHP script. This can lead to data being stored or retrieved incorrectly, causing characters to display incorrectly. To solve this issue, you can set the character set for the database connection in your PHP script to match the character set of the database.

// Set the character set for the database connection
mysqli_set_charset($connection, 'utf8');