从 PHP exec() 调用 Node.js 脚本时如何传递参数？

Question

我正在尝试实现 iOS 推送通知。我的 PHP 版本停止工作，我无法让它再次工作。但是，我有一个 node.js 脚本可以完美运行，使用 Apple 的新 Auth Key。我可以使用：

从 PHP 调用它

chdir("../apns");
exec("node app.js &", $output);

但是，我希望能够将 deviceToken 和消息传递给它。有没有办法给脚本传递参数？

这是我正在尝试运行 (app.js) 的脚本：

var apn = require('apn');

var apnProvider = new apn.Provider({  
     token: {
        key: 'apns.p8', // Path to the key p8 file
        keyId: '<my key id>', // The Key ID of the p8 file (available at https://developer.apple.com/account/ios/certificate/key)
        teamId: '<my team id>', // The Team ID of your Apple Developer Account (available at https://developer.apple.com/account/#/membership/)
    },
    production: false // Set to true if sending a notification to a production iOS app
});

var deviceToken = '<my device token>';
var notification = new apn.Notification();
notification.topic = '<my app>';
notification.expiry = Math.floor(Date.now() / 1000) + 3600;
notification.badge = 3;
notification.sound = 'ping.aiff';
notification.alert = 'This is a test notification \u270C';
notification.payload = {id: 123};

apnProvider.send(notification, deviceToken).then(function(result) {  
    console.log(result);
    process.exit(0)
});

Answer 1

您可以像将参数传递给任何其他脚本一样传递参数。

node index.js param1 param2 paramN

您可以通过 process.argv

访问参数

The process.argv property returns an array containing the command line arguments passed when the Node.js process was launched. The first element will be process.execPath. See process.argv0 if access to the original value of argv[0] is needed. The second element will be the path to the JavaScript file being executed. The remaining elements will be any additional command line arguments.

exec("node app.js --token=my-token --mesage=\"my message\" &", $output);

app.js

console.log(process.argv);

/* 
Output:

[ '/usr/local/bin/node',
  '/your/path/app.js',
  '--token=my-token',
  '--mesage=my message' ] 
*/

您可以使用minimist为您解析参数：

const argv = require('minimist')(process.argv.slice(2));
console.log(argv);

/*
 Output

{
    _: [],
    token: 'my-token',
    mesage: 'my message'
} 
*/

console.log(argv.token) //my-token
console.log(argv.message) //my-message

Answer 2

经过一番努力，我有了一个解决方案。我正在使用本地网络 UI 发送和接收数据 to/from Arduino 使用 AJAX，php 脚本是：

 <?php
  /**
  * Remember to go to Device Manager> Ports (COM & LPT)>Arduino XXX (COMXX)>right
  * click>Properties>
  * Port Settings>Advanced>uncheck "use FIFO buffers ........."
  * In other hand, remeber that the Tx speed has to be the same in writeandread.js as in
  * Arduino sketch and in the COM
  * properties in Device manager, I selected 115200 b/s.
  *
  */
  $puerto = escapeshellarg("COM3");
  $dato = escapeshellarg("<4,2,20>");
  exec("node C:/xampp/htdocs/DisenoWEBTerminados/BatteryTester/Scripts/writeandread.js {$puerto} {$dato} 2>&1", $output);
  $myJSON = $output;
  $pepe = implode($myJSON);
  echo $pepe;
  echo "<script>console.log('Rx from Arduino ".$pepe."')</script>";

  ?>

Node Js 脚本是：

var portName = process.argv[2];
var dato = process.argv[3];

var SerialPort = require("serialport");
var Readline = require('@serialport/parser-readline');
var serialport = new SerialPort(portName, { baudRate: 115200 });
   // Look for return and newline at the end of each data packet
var parser = serialport.pipe(new Readline({ delimiter: '\n' }));

serialport.on('open', function(err) {
    // A timeout is necessary to wait the port to open (if not working, try to 
   increase the milliseconds value)
    setTimeout(function() {
        serialport.write(dato);
    }, 1700);
    if(err) {
        console.log('Error when trying to open:' + err);
    }
    parser.on('data', function(data) {
        console.log(data);
        serialport.close(function (err) {
           if(err){
                console.log('port closed', err);
            }
         });
     });
 });

serialport.on('close', () => {
 console.log('Bye');
});

使用这个脚本，可以从 Arduino 发送和接收数据，并将其传递给客户端的 AJAX 脚本，然后做自己想做的事。现在我正在向 php 第一个脚本添加一个脚本，以编程方式检测 Arduino 连接到的 COM 端口。

尽情享受吧。

从 PHP exec() 调用 Node.js 脚本时如何传递参数？

How can I pass parameters when calling a Node.js script from PHP exec()?

javascript

php

apple-push-notifications

node.js

ios