How can debugging techniques like var_dump be used to troubleshoot issues with PHP scripts that involve database updates?

To troubleshoot database update issues in PHP scripts, you can use debugging techniques like var_dump to inspect the variables involved in the update process. By using var_dump, you can print out the values of variables before and after database queries to identify any discrepancies or errors. This can help pinpoint where the issue lies and guide you in resolving it effectively. 

// Example code snippet demonstrating the use of var_dump for debugging database update issues

// Perform database update
$query = "UPDATE table_name SET column_name = :new_value WHERE id = :id";
$stmt = $pdo->prepare($query);
$stmt->bindParam(':new_value', $new_value);
$stmt->bindParam(':id', $id);

// Debugging with var_dump
var_dump($new_value);
var_dump($id);

if($stmt->execute()) {
    echo "Update successful";
} else {
    echo "Update failed";
}

Related Questions