How can I use the next php funtion: "fopen" ??

I have seen the phpinfo() and "fopen" and "fwrite" are in the disable_functions... why?

fopen and fwrite have always been disabled because they can be used to modify files outside of your dir. Same goes for readfile.

readfile() isn't disabled. the following is a list of functions that are disabled and have always been disabled.

system,exec,phpinfo,escapeshellarg,upload_file,rmdir,escapeshellcmd,passthru,proc_close,proc_open,shell_exec,chmod,chown,chroot,chgrp,fsockopen,ftp_connect,ftp_ssl_connect,pfsockopen,socket_connect,socket_create,socket_listen,socket_bind,socket_accept,socket_create_listen,socket_send,socket_write,socket_read,symlink,mail,rename,copy,phpinfo,dl,system,info,upload,system,exec,passthru,eval,is_uploaded_file,move_uploaded_file,escapeshellcmd,popen,pcntl_exec,readfile,shell_exec,escapeshellarg,proc_close,proc_open,ini_alter,popen,show_source,curl_exec,fwrite,fopen

I re-enabled them for the time being.. but in general, you could use something like this instead:

// set file to read
$file = '/usr/local/stuff/that/should/be/elsewhere/recipes/omelette.txt';
// read file into string
$data = file_get_contents($file) or die('Could not read file!');
// print contents
echo $data;

Rename has been disabled for years now... there are other ways to change the file name without rename().. just search google. I'll check it out and see if its worth re-enabling rename.

Since the upgraded, the important and frequently used funcion to write and read files have been disabled.

The administrador should re-active them while WE change the php codes.

I can't really say for sure, but that seems like it would be a non-related issue. If it were because of this you would get a php Warning or Fatal error, rather than just a blank page. You check to make sure that your source code for that page is still intact.

And I can fopen(), fread() and fwrite() files just fine right now, and always have been able to. And I'm glad we have php 5 now. There are some php 5 functions that i've wanted to use in the past, and now i can!

THE NEXT SCRIPT READS A VARIABLE ($var) FROM A FILE ($fileold) AND IT WRITES THE VARIABLE ($var) IN OTHER FILE ($fileold):

THE NEXT FUNCTION DON NOT WORK: