在PHP中推送通知
[英]Push notifications in php
问题描述
How to implement push notifications in PHP based webapp. 
如何在基于PHP的webapp中实现推送通知。 What I actually want to implement is to get a notification as soon as some user joins a chat. 我真正想要实现的是在某些用户加入聊天后立即收到通知。
suppose two users are participants in a chat, if a third user joins that chat, then other two user be notified. 假设两个用户是聊天的参与者，如果第三个用户加入了该聊天，则将通知另外两个用户。
5 个解决方案
解决方案1
1 2013-05-01 12:20:32
I think you mean notifications to the user using Javascript. 我认为您是指使用Javascript向用户发送通知。 This could be done using websockets (HTML5) or javascript that every x seconds makes a call to your server. 可以使用websockets（HTML5）或javascript来完成，每隔x秒就会调用一次服务器。
Websockets are hard to setup are my experience. Websockets很难设置是我的经验。
every x seconds is, 1 a waste of resource often and leads to a lot of trouble when you get a lot of visitors. 每x秒通常会浪费资源1，当您吸引大量访问者时会带来很多麻烦。
The solution I use is an api called pusher . 我使用的解决方案是一个称为pusher的api。 I use it only for apps for my self so I use the free version. 我仅将其用于自己的应用程序，因此我使用免费版本。 But it works like a charm and is easy to setup 但是它就像一个魅力，很容易设置
Also look at http://en.wikipedia.org/wiki/Push_technology , from Anigel 另请参见Anigel的http://en.wikipedia.org/wiki/Push_technology
解决方案2
1 2013-05-01 14:15:24
What about adding NodeJS + SocketIO to your stack? 如何将NodeJS + SocketIO添加到堆栈中？
SocketIO let's you create a room for your clients and it can emit messages to a room of clients. SocketIO让您为客户创建一个房间，它可以向客户房间发送消息。
Let me show you a basic example: 让我向您展示一个基本示例：
notification.js notification.js
var app = require('http').createServer(),
io = require('socket.io').listen(app);
app.listen(3000);
io.sockets.on('connection', function (socket) {
// Joining a room
socket.join('chatroom');
socket.on('newUserJoinRequest', function(data) {
socket.broadcast.to('chatroom').emit('newUserJoinedNotification', data);
})
});
client.html client.html
<!DOCTYPE html>
<head>
<meta charset="utf-8">
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript" src="http://localhost:3000/socket.io/socket.io.js"></script>
</head>
<body>
<input type="text" id="username" placeholder="name">
<button type="text" id="joinButton">Join</button>
<div id="responses">
<h2>NodeJS+SocketIO responses:</h2>
<ul></ul>
</div>
<script>
var socket;
jQuery(document).ready(function() {
socket = io.connect('//localhost:3000');
socket.on('newUserJoinedNotification', function(data) {
var li = '<li>A new user joined the room: ' + data.name + '</li>';
jQuery('#responses ul').append(li);
});
});
jQuery('#joinButton').click(function() {
var username = jQuery('#username').val();
socket.emit('newUserJoinRequest', {name: username});
});
</script>
</body>
</html>
解决方案3
0 2013-05-01 12:22:21
True push from server to client is not (easily) possible with PHP. 使用PHP无法（轻松）将服务器真正推向客户端。 What you will need is polling. 您将需要进行轮询。 You can create a message queue on the server for each connected client and the client automatically retrieves the contents of that queue with a poller (so basically doing requests every set interval). 您可以在服务器上为每个已连接的客户端创建一个消息队列，并且客户端会使用轮询器自动检索该队列的内容（因此基本上是在每个设置的时间间隔内执行请求）。
解决方案4
0 2013-05-01 12:53:12
If you want it to be simple, then you need to look into either polling, long polling or using an api. 如果您希望它简单，那么您需要研究轮询，长时间轮询或使用api。 http://en.wikipedia.org/wiki/Push_technology http://en.wikipedia.org/wiki/Push_technology
There is no way using php to make the server open up a connection via proxies, firewalls etc to a program on a computer when that computer hasn't already got a connection to the server and said it is waiting for data. 当该计算机尚未与服务器建立连接并表示正在等待数据时，无法使用php使服务器通过代理，防火墙等打开与该计算机上程序的连接。
That is effectively what long polling does, the client makes a connection to the server and keeps it open waiting for the server to tell it something, or until it times out. 这实际上是长时间轮询所做的事情，客户端与服务器建立连接并使其保持打开状态，以等待服务器告知其某些信息或直到超时。 If it times out, then it reconnects 如果超时，则重新连接
解决方案5
0 2017-11-16 20:35:22
You can set up push notifications without developing your own app using notify.pm. 您可以使用notify.pm设置推送通知，而无需开发自己的应用程序。 It takes around 2 lines of code, the API is here: https://github.com/notifypm/notifypm-php-api 它大约需要两行代码，API在这里： https : //github.com/notifypm/notifypm-php-api
<?php
require_once("notifypm.class.php");
$n = new Notifypm('email', 'password', '.pmNumber');
$n->push('Message!', 'Link (optional)!');
$n->disconnect();
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