This is my first irc bot made with PHP: idea is simple playing a game that forces you into searching for peopld just type !search bla and it will post in anotehr channel
note : $search_channel cld be turned into an array then while loop it to search into more than one channel

<?php
// Prevent PHP from stopping the script after 30 sec
set_time_limit(0);
//identifying vars
$host = "network";
$nick="php-bot";
$chan="#channel name";
$search_channel = "#channel to search in";
$no_talking = 0;
// Opening the socket
$socket = fsockopen($host, 6667);
// Send auth info
fputs($socket,"USER PHP_BOT bla MHB :bla PHP IRC BOT\n");
fputs($socket,"NICK $nick\n");
// WAIT FOR SIGN IN
while($logincount < 10) {
$logincount++;
 $data = fgets($socket, 128);
      echo nl2br($data);

      // Separate all data
      $ex = explode(' ', $data);

      // Send PONG back to the server
      if($ex[0] == "PING"){
         fputs($socket, "PONG ".$ex[1]."\n");
      }
      flush();
}   
//sleep 10 seconds before joining
sleep(10);
// Join channel
fputs($socket, "JOIN :".$chan."\n");
// Force an endless while
while(1) {
   // Continue the rest of the script here
   while($data = fgets($socket, 128)) {

      echo nl2br($data);
      // Separate all data
      $ex = explode(' ', $data);
      // Send PONG back to the server
      if($ex[0] == "PING"){
         fputs($socket, "PONG ".$ex[1]."\n");
      }
      //seperate username and hostname
      preg_match('/^:(.*?)!(.*?)$/i', $ex[0], $matches);
     $hostname = "!".$matches[2];
     $username = $matches[1];
       //placing what user says in a variable
      $command = str_replace(array(chr(10), chr(13)), '', $ex[3]);
      switch ($command) {
        //welcome message
        case ":!welc":
       fputs($socket, "PRIVMSG ".$chan." :welcome to my channel channel...Soon we are going to have our new set of services here keep checking:) \n");
       break;
       //ending the script
       case ":!end":
       fputs($socket, "QUIT\n");
       break;
       //search for a game through !search
       case ":!search":
       //put what user says in a raw called $say_raw
       $c=4;
       $say_raw = "";
       while (isset($ex[$c])){
       $say_raw .= $ex[$c]." ";
       $c++;
     }
     //send msg to another channel
     fputs($socket, "PRIVMSG ".$search_channel." : ".$username." : searching".$say_raw."\n");
     break;
     default:
     $no_talking++;
     if ($no_talking % 60 == 0){
       fputs($socket, "PRIVMSG ".$chan." :you can use search \n");
     }
     break;
                        }
           flush();
       }
 sleep(1);
 }

?>