(solved) I want to print IP-address on webpage (Ethernet Shield)

YES victory. thanks bubulindo (just had to change

char[4] printIP;

into char printIP[4];

This sketch shows a webpage with the webservers IP-address showing.

#include <SPI.h>
#include <Ethernet.h>
byte mac[] = { 
  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
byte ip[] = { 
  192, 168, 14, 85};
char printIP[4]; 
Server server(80);
void setup()
{
  Ethernet.begin(mac, ip);
  server.begin();
}
void loop()
{
  Client client = server.available();
  if (client) {
    boolean current_line_is_blank = true;
    while (client.connected()) {
      if (client.available()) {
        char c = client.read();
        if (c == 'n' && current_line_is_blank) {
          client.println("HTTP/1.1 200 OK");
          client.println("Content-Type: text/html");
          client.println();
          itoa((int)ip[0], printIP, 10);
          client.print(printIP);
          client.print(".");         
          itoa((int)ip[1], printIP, 10);
          client.print(printIP);
          client.print(".");
          itoa((int)ip[2], printIP, 10);
          client.print(printIP);
          client.print(".");
          itoa((int)ip[3], printIP, 10);
          client.print(printIP);
          break;
        }
        if (c == 'n') {
          current_line_is_blank = true;
        } 
        else if (c != 'r') {
          current_line_is_blank = false;
        }
      }
    }
    delay(1);
    client.stop();
  }
}