I build a patch for wrapper php fopen. In this patch I create a way for
the script access the filedescriptos opened by process. Ex:
php file.php 3<file_in.txt 7>file_out.txt
In this case the script can't read the filedescriptor 3 and 7. Not
have way for read or write in filedescriptor opends by precess.
I make a way for read or write it. I modify the wrapper 'php' for fopen
function. (http://br.php.net/manual/en/wrappers.php.php) A create the
'php:/fd/N' which N is the filedescriptor number.
how to access fd 7 to write?
$fd = fopen("php://fd/7",'w');
fwrite($fd,"test of write\n");