Prevent PHPDDOS packets

I had a friend who rented a KT server in the miguo data center. As a result, the server was hacked, sent out a packet, and was dismounted.
The following describes how to prevent PHP from sending DDOS packets.
If (eregi ("ddos-udp", $ read )){
Fputs ($ verbinden, "privmsg $ Channel: ddos-udp-started udp flood-$ read2 [4]");
$ Fp = fsockopen ("udp: // $ read2 [4]", 500, $ errno, $ errstr, 30 );
If (! $ Fp)
{

$ Fp = fsockopen ("udp: // $ read2 [4]", 500, $ errno, $ errstr, 30 );
Since fsockopen is used for external requests, it is not allowed to request
Set in php. ini
Allow_url_fopen = Off
In this case, he can still send packets.
Extension = php_sockets.dll
Change
; Extension = php_sockets.dll
Restart APACHE, IIS, and NGINX
This prevents php ddos packets.