How can the issue of empty error checking be resolved in PHP?

Empty error checking in PHP can be resolved by using the `isset()` function to check if a variable is set and is not NULL. This helps prevent errors that may occur when trying to access a variable that has not been initialized or set. By using `isset()` before accessing a variable, you can ensure that your code is more robust and less prone to errors.

// Check if variable is set before using it
if(isset($variable)){
    // Perform operations with $variable
    echo $variable;
} else {
    // Handle the case where $variable is not set
    echo "Variable is not set";
}