- fwrite: documentation ( source)
- fseek: documentation ( source)
- fpassthru: documentation ( source)
- fread: documentation ( source)
- tmpfile: documentation ( source)
<?php
$temp = tmpfile();
fwrite($temp, "writing to tempfile");
fseek($temp, 0);
echo fread($temp, 1024);
fpassthru($fp);
fseek($temp, 0);