fsocketopen() Not connecting to server? - php

Question

I've been trying to connect to a Twitch chat via IRC. I've added an echo function to test where I had connected or not as that page was blank and an account didn't join the IRC.
Here is my code:
<?php
set_time_limit(0);
ini_set('display_errors', 'on');
$datatwitch= array(
'server' => 'irc.twitch.tv',
'port' => 6667,
'nick' => 'greatbritishbgbot',
'name' => 'greatbritishbgbot',
'pass' => 'oauth:HERE',
);
?>
<?php
//The server host is the IP or DNS of the IRC server.
$server_host = $datatwitch['server'];
//Server Port, this is the port that the irc server is running on. Deafult: 6667
$server_port = $datatwitch['port'];
//Server Chanel, After connecting to the IRC server this is the channel it will join.
$server_chan = "#greatbritishbg";
//login password
$nickname = $datatwitch['name'];
$nickname_pass = $datatwitch['pass'];
//Ok, We have a nickname, now lets connect.
$server = array(); //we will use an array to store all the server data.
//Open the socket connection to the IRC server
$server['SOCKET'] = #fsockopen($server_host, $server_port, $errno, $errstr, 2);
if($server['SOCKET'])
{
//Ok, we have connected to the server, now we have to send the login commands.
echo "connected";
SendCommand("PASS $nickname_pass \n\r"); //Sends the password not needed for most servers
SendCommand("NICK $nickname\n\r"); //sends the nickname
SendCommand("USER $nickname USING PHP IRC\n\r"); //sends the user must have 4 paramters
while(!feof($server['SOCKET'])) //while we are connected to the server
{
$server['READ_BUFFER'] = fgets($server['SOCKET'], 1024); //get a line of data from the server
echo "[RECIVE] ".$server['READ_BUFFER']."<br>\n\r"; //display the recived data from the server
/*
IRC Sends a "PING" command to the client which must be anwsered with a "PONG"
Or the client gets Disconnected
*/
//Now lets check to see if we have joined the server
if(strpos($server['READ_BUFFER'], "422")) //422 is the message number of the MOTD for the server (The last thing displayed after a successful connection)
{
//If we have joined the server
SendCommand("JOIN $server_chan\n\r"); //Join the chanel
}
if(substr($server['READ_BUFFER'], 0, 6) == "PING :") //If the server has sent the ping command
{
SendCommand("PONG :".substr($server['READ_BUFFER'], 6)."\n\r"); //Reply with pong
//As you can see i dont have it reply with just "PONG"
//It sends PONG and the data recived after the "PING" text on that recived line
//Reason being is some irc servers have a "No Spoof" feature that sends a key after the PING
//Command that must be replied with PONG and the same key sent.
}
flush(); //This flushes the output buffer forcing the text in the while loop to be displayed "On demand"
}
} else {
echo "connection failed";
}
function SendCommand ($cmd)
{
global $server; //Extends our $server array to this function
#fwrite($server['SOCKET'], $cmd, strlen($cmd)); //sends the command to the server
echo "[SEND] $cmd <br>"; //displays it on the screen
}
?>
It appears I can't Get passed if($server['SOCKET']). Is there anyway I can diagnose this? As I have directly connect with the details in hexChat.

Answer 1

The server had actually been preventing me to use fsocket. After contacting my host and moving away from a shared host it started to work.

Answer 2

Please take a look at this answer: https://stackoverflow.com/a/24835967/1163786
Especially:
$socket = fsockopen($bot["Host"], $bot["Port"], $error1, $error2);
if(!$socket) {
echo 'Crap! fsockopen failed. Details: ' . $error1 . ': ' . $error2;
}
To get the details about the socket error = reason for socket not connecting.
Currently, you have $errno, $errstr on fsockopen, but echo only "connection failed".