How can the filepointer affect the transfer of files using $_FILE in PHP?

The filepointer in PHP can affect the transfer of files using $_FILE if it is not properly reset or closed after reading or writing to a file. This can lead to unexpected behavior or errors when trying to move, copy, or delete files. To ensure smooth file transfers, always reset or close the filepointer after performing file operations.

// Example of resetting the filepointer after reading a file
$file = fopen("example.txt", "r");
// Read file contents
fclose($file);

// Example of closing the filepointer after writing to a file
$file = fopen("example.txt", "w");
// Write to file
fclose($file);