prepare( 'SELECT first_name, last_name FROM users WHERE user_id = (:id) LIMIT 1;' );
$data->bindParam( ':id', $id, PDO::PARAM_INT );
$data->execute();
$exists = $data->rowCount();
break;
case SQLITE:
global $sqlite_db_connection;
$stmt = $sqlite_db_connection->prepare('SELECT COUNT(first_name) AS numrows FROM users WHERE user_id = :id LIMIT 1;' );
$stmt->bindValue(':id',$id,SQLITE3_INTEGER);
$result = $stmt->execute();
$result->finalize();
if ($result !== false) {
// There is no way to get the number of rows returned
// This checks the number of columns (not rows) just
// as a precaution, but it won't stop someone dumping
// multiple rows and viewing them one at a time.
$num_columns = $result->numColumns();
if ($num_columns == 1) {
$row = $result->fetchArray();
$numrows = $row[ 'numrows' ];
$exists = ($numrows == 1);
}
}
break;
}
}
// Get results
if ($exists) {
// Feedback for end user
$html .= 'User ID exists in the database.
';
} else {
// User wasn't found, so the page wasn't!
header( $_SERVER[ 'SERVER_PROTOCOL' ] . ' 404 Not Found' );
// Feedback for end user
$html .= 'User ID is MISSING from the database.
';
}
}
// Generate Anti-CSRF token
generateSessionToken();
?>