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Nov 25, 2018

PHP + Curl + HTTP POST

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Feb 3, 2018

Node Redis Socket.io PHP Simple example to publish a message

pusher.php

<?php

//Load the Predis autoloader
require("Predis/autoload.php");

//Register all classes
Predis\Autoloader::register();

//Create a redis client to publish event
$redis = new Predis\Client(array(
    "scheme" => "tcp",
    "host" => "127.0.0.1",
    "port" => 6379
));

//Publish the event
$redis->publish("mychannel", "Woooow there !!!");
?>

pusher.js

var app = require('express')();
var server = require('http').createServer(app);
var io = require('socket.io')(server);
var redis = require('redis');

server.listen(8080);
io.on("connection", function (socket) {
    console.log("new client connected");

    var redisClient = redis.createClient();
    redisClient.subscribe('mychannel');

    redisClient.on("message", function(channel, message) {
      console.log("mew message in queue channel");
      socket.emit("schannel", message);
    });

    socket.on('disconnect', function() {
      redisClient.quit();
    });

});

receiver.html

<!doctype html>
<html>
<head>
    <title>Test</title>
</head>
<body>
<div class="container">
        <div class="row">
            <div class="col-lg-8 col-lg-offset-2" >
              <div id="messages" >ss</div>
            </div>
        </div>
    </div>

    <script src="//code.jquery.com/jquery-1.11.2.min.js"></script>
    <script src="//code.jquery.com/jquery-migrate-1.2.1.min.js"></script>
    <script src="http://localhost:8080/socket.io/socket.io.js"></script>
    <script>
            var socket = io.connect('http://localhost:8080');
            socket.on("schannel", function(message) {
                $( "#messages" ).append( "<p>"+message+"</p>" );
                console.log("tweet from", message);
                console.log("contents:", message);
            });
    </script>

</body>
</html>

That's all. You are done....

You can monitor redis messages using following command
redis-cli monitor

Jan 31, 2018

Both php 7.0 and 5.6 on Ubuntu

sudo add-apt-repository ppa:ondrej/php
sudo apt-get update
sudo apt-get install php5.6 php7.0
sudo a2dismod php5.6
sudo a2enmod php7.0
sudo service apache2 restart

Apr 27, 2015

Disabling errors

In plesk panel
error_reporting -> enter custom value->E_ALL & ~E_NOTICE | E_STRICT

E_NOTICE - undefined variable warning
E_STRICT - Calling non-static methods statically generates an E_STRICT level warning.

Feb 25, 2015

session null after redirect with header

This is session saving problem and i could fix it giving permission to session storing directory.

Other things to check

session_save_path('"your home directory path"/cgi-bin/tmp');
check register_globals. It should be off.
After the header redirect, end the current script using exit(); (Or can use session_write_close(); Or session_regenerate_id(true))

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