What are some potential pitfalls to be aware of when dumping tables in PHP?

One potential pitfall when dumping tables in PHP is the risk of exposing sensitive information if not handled properly. To prevent this, it is important to sanitize user input and limit the amount of data being displayed to only what is necessary. Additionally, consider implementing access controls to restrict who can access the table dumping functionality.

// Example code snippet to sanitize user input before dumping table
$tableName = $_GET['tableName']; // Assuming this is the table name provided by user input

// Sanitize the input to prevent SQL injection
$tableName = filter_var($tableName, FILTER_SANITIZE_STRING);

// Limit the amount of data displayed to prevent exposing sensitive information
$query = "SELECT * FROM $tableName LIMIT 100"; // Limiting to 100 rows for example

// Implement access controls to restrict who can access the table dumping functionality
if(userHasPermission($_SESSION['user_id'])) {
    // Execute the query and display the table data
} else {
    echo "You do not have permission to access this functionality.";
}