How can PHP developers handle permission denied errors when using functions like copy() and move_uploaded_file()?

When PHP developers encounter permission denied errors when using functions like copy() and move_uploaded_file(), it usually means that the script does not have the necessary permissions to read or write to the specified file or directory. To solve this issue, developers can adjust the file permissions or ownership using chmod() or chown() functions before attempting to copy or move the file.

// Adjust file permissions before copying or moving the file
chmod($sourceFilePath, 0644); // Set read and write permissions for owner, read permissions for group and others

// Copy the file to the destination directory
if (copy($sourceFilePath, $destinationFilePath)) {
    echo "File copied successfully";
} else {
    echo "Failed to copy file";
}