(PHP 4, PHP 5, PHP 7)
fclose — Closes an open file pointer
$handle
   )
   The file pointed to by handle is closed.
  
handleThe file pointer must be valid, and must point to a file successfully opened by fopen() or fsockopen().
   Returns TRUE on success or FALSE on failure.
  
Example #1 A simple fclose() example
<?php
$handle = fopen('somefile.txt', 'r');
fclose($handle);
?>