trying to connect curl with express js - php

Question

Hello I am trying to connect from my site with curl (php) to a rest api (node js-express-js) i have made. Everythink seems to work fine except the answer from curl is empty
server from node-js:
var express = require('express'); // call express
var app = express(); // define our app using express
var bodyParser = require('body-parser');
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
var port = process.env.PORT || 8080; // set our port
// ROUTES FOR OUR API
// =============================================================================
var router = express.Router();
router.get('/', function(req, res) {
res.json({ message: 'hooray! welcome to our api!' });
});
app.use('/api', router);
app.listen(port);
console.log('Listening on ' + port);
On my site i am trying to retrieve the json by using curl:
<?php
$ch = curl_init();
// set url
curl_setopt($ch, CURLOPT_URL, "xxx:8080/api/"); // i removed the ip from my server for safety reasons
//return the transfer as a string
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// $output contains the output string
$output = curl_exec($ch);
print "output=";
print_r($ouput);
// close curl resource to free up system resources
curl_close($ch);
?>
Note: sending a get request above from postman i receive the answer i want. I don't know what is wrong. Thx in advance.
Also, curl is a blocking function.. right?
Both "servers" are on the same server. I don't know if is an error like cross-server-origin of javascript

Answer 1

reason why you don't get response via php - wrong var name in print_r func
<?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "xxx:8080/api/");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($ch);
print "output=";
print_r($output); // missed t in output
curl_close($ch);
?>