Attempt at making a Quote Of The Day server in PHP during an internet outage back in 2015

QOTD.php

<?php
/*
 * TCP only PHP Quote Of The Day Server
 * Fuck the spec #GoogleChrome
 * My Excuse for not being productive during this internet outage ^.^
 * By Flashwave <http://flash.moe>
 */

// Configuration
$conf['address']    = '0.0.0.0';
$conf['port']       = 17;
$conf['quotesfile'] = 'quotes.txt';
 
// Enable reporting for all errors
error_reporting(-1);

// Allow the script to wait for connections
set_time_limit(0);

// Turn on implicit output flushing
ob_implicit_flush();

// Get quotes file
$quotes = file_get_contents($conf['quotesfile']);

// Make the quotes file a quotes array
$quotes = explode("\r\n", $quotes);

// Check if sockets extension is loaded
if(!extension_loaded('sockets'))
    trigger_error('Sockets extension is not loaded.', E_USER_ERROR);

// TCP Bit
// Create a socket
if(($sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) === FALSE)
    trigger_error('Failed to create TCP socket: '. socket_strerror(socket_last_error()), E_USER_ERROR);

// Bind the socket
if(socket_bind($sock, $conf['address'], $conf['port']) === FALSE)
    trigger_error('Failed to bind TCP socket: '. socket_strerror(socket_last_error()), E_USER_ERROR);

// Start listening
if(socket_listen($sock) === FALSE)
    trigger_error('Failed to listen on TCP socket: '. socket_strerror(socket_last_error()), E_USER_ERROR);

do {

    if(($msgsock = socket_accept($sock)) === FALSE) {
        trigger_error('Failed to accept things socket: '. socket_strerror(socket_last_error($sock)), E_USER_ERROR);
        break;
    }
    
    // Block socket
    socket_set_block($msgsock) . PHP_EOL;
    
    $msg = $quotes[array_rand($quotes)];
    
    socket_write($msgsock, $msg, strlen($msg));
    
    // Close socket
    socket_shutdown($msgsock, 2);
    socket_close($msgsock);
    
} while(true);

// Close socket
socket_shutdown($sock, 2);
socket_close($sock);