How can errors in PHP code, such as incorrect file paths in functions like fopen and fwrite, be identified and resolved effectively?

To identify and resolve errors in PHP code related to incorrect file paths in functions like fopen and fwrite, you can start by checking the file paths for typos or incorrect formatting. Make sure the file paths are relative or absolute paths to the correct location of the file. Additionally, ensure that the file permissions are set correctly to allow PHP to read from and write to the file.

$filePath = "/path/to/file.txt";

$file = fopen($filePath, "w");

if ($file) {
    fwrite($file, "Hello, World!");
    fclose($file);
    echo "Data written to file successfully.";
} else {
    echo "Error opening file.";
}