What potential issues can arise when using the isError function in PHP to handle database queries?

One potential issue when using the isError function in PHP to handle database queries is that it may not accurately capture all types of errors that can occur during the query execution. To address this, it is recommended to use more specific error handling techniques, such as try-catch blocks, to catch and handle different types of errors that may arise.

// Example of using try-catch block for error handling in database queries
try {
    // Perform database query here
    $result = $db->query($query);
    
    if (!$result) {
        throw new Exception("Error executing query: " . $db->error);
    }
    
    // Process query result here
    
} catch (Exception $e) {
    // Handle the error
    echo "An error occurred: " . $e->getMessage();
}