node.js需要传参给PHP，执行计划任务

var events = require(‘events‘); start_cron("gc","",80,"/cron.php",30000,{"auth":"7wElqW6vG2FcjnhomEckLg1W2t6uP5ZE0VlwjRrinrFmS3MODuvVFvhAGWeCwNRp"}); function start_cron(name,host,port,url,timespan,postdata) { var emitter = new events.EventEmitter(); var cronInterval = null; emitter.on(name, function() { clearInterval(cronInterval); var http = require(‘http‘); var qs = require(‘querystring‘); var content = qs.stringify(postdata); var options = { hostname: host, data:postdata, port: port, path: url, method: ‘POST‘, headers: { ‘Content-Type‘: ‘application/x-www-form-urlencoded; charset=UTF-8‘ } }; var req = http.request(options, function (res) { cronInterval = setInterval(function() { emitter.emit(name); }, timespan); //console.log(‘STATUS: ‘ + res.statusCode); //console.log(‘HEADERS: ‘ + JSON.stringify(res.headers)); res.setEncoding(‘utf8‘); res.on(‘data‘, function (chunk) { console.log(‘BODY: ‘ + chunk); }); }); req.on(‘error‘, function (e) { cronInterval = setInterval(function() { emitter.emit(name); }, timespan); console.log(‘problem with request: ‘ + e.message); }); req.write(content); req.end(); }); cronInterval = setInterval(function() { emitter.emit(name); }, timespan); }

PHP接收不到auth值。。

$auth = trim($_POST[‘auth‘]);

解决方案在headers中加入‘Content-Length‘: Buffer.byteLength(content)

解释：Buffer.byteLength(字符串,编码方式)计算指定字符串的字节数

Buffer.byteLength(string[, encoding])

string {String} | {Buffer} | {TypedArray} | {DataView} | {ArrayBuffer}

encoding {String} 默认：‘utf8‘

返回：{Number}

当 string 是一个 Buffer / DataView / TypedArray / ArrayBuffer 时，，返回实际的字节长度。

除此之外，将转换为 String 并返回字符串的字节长度。

有时候不加这个会没法解析数据

headers: { ‘Content-Type‘: ‘application/x-www-form-urlencoded; charset=UTF-8‘, ‘Content-Length‘: Buffer.byteLength(content) }