In what scenarios would using functions like fget() be more appropriate than readfile() for file handling in PHP?

Using functions like fget() would be more appropriate than readfile() for file handling in PHP when you need to read the contents of a file line by line, process the data, or manipulate it in some way before outputting it. fget() allows you to read a file line by line, giving you more control over how you handle the data.

$filename = "example.txt";
$handle = fopen($filename, "r");

if ($handle) {
    while (($line = fgets($handle)) !== false) {
        // Process each line of the file here
        echo $line;
    }
    
    fclose($handle);
} else {
    echo "Error opening the file.";
}