What are some common pitfalls when trying to handle errors in database queries in PHP scripts?

One common pitfall when handling errors in database queries in PHP scripts is not properly checking for errors after executing the query. To solve this, always check for errors using functions like mysqli_error() or PDO::errorInfo(). Additionally, make sure to handle errors gracefully by displaying an appropriate error message to the user.

// Example of handling errors in a database query using mysqli

// Perform database query
$result = mysqli_query($conn, "SELECT * FROM users");

// Check for errors
if(!$result) {
    die("Error: " . mysqli_error($conn));
}

// Fetch data from the result
while($row = mysqli_fetch_assoc($result)) {
    // Process data here
}

// Close the connection
mysqli_close($conn);