What potential pitfalls can arise from using reserved words as column names in a MySQL database when interacting with PHP?

Using reserved words as column names in a MySQL database can lead to syntax errors when interacting with PHP, as PHP may interpret these words as commands rather than column names. To avoid this issue, you can enclose the reserved words in backticks (`) when referencing them in SQL queries.

// Example of using backticks to reference a column named "order" in a MySQL query
$columnName = "order";
$query = "SELECT `$columnName` FROM table_name";
$result = mysqli_query($connection, $query);