How to delete a file in PHP?

@lindsey.homenick 

To delete a file in PHP, you can use the unlink() function, which deletes a file given its filename:

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<?php
$filename = "file.txt";

if (file_exists($filename)) {
  unlink($filename);
  echo "File deleted successfully.";
} else {
  echo "File does not exist.";
}
?>

In the code above, file_exists() function is used to check whether the file exists before attempting to delete it. If the file exists, unlink() function is called to delete the file, and a success message is displayed. Otherwise, an error message is displayed.

Note that unlink() function can only delete files, not directories. To delete a directory, you need to recursively delete all of its contents first, then delete the directory itself.