In what situations would it be beneficial to use the array_pop function in PHP when working with file names?

When working with file names in PHP, it may be beneficial to use the array_pop function when you need to extract the file extension from a file name. This function allows you to easily remove the last element (in this case, the file extension) from an array created by splitting the file name string. By using array_pop, you can efficiently retrieve the file extension without needing to manually parse the file name string.

$filename = "example.txt";
$fileParts = explode(".", $filename);
$fileExtension = array_pop($fileParts);
echo $fileExtension; // Output: txt