Description
Reads to EOF on the given file pointer and writes the results to
standard output.
If an error occurs, fpassthru() returns
false.
The file pointer must be valid, and must point to a file
successfully opened by fopen(),
popen(), or fsockopen().
The file is closed when fpassthru() is done
reading it (leaving fp useless).
If you just want to dump the contents of a file to stdout you may
want to use the readfile(), which saves you
the fopen() call.
See also readfile(),
fopen(), popen(), and
fsockopen()
fopen