Node to php stdin test

spawner.js

var fs = require('fs'); var spawn = require('child_process').spawn;
    
//dummy stdin file
var stdin = fs.openSync('stdin_file', 'w+');
//write the string
fs.writeSync(stdin, 'test');

spawn('php', ['stdin_test.php'], {
    cwd: __dirname,
    detached: true,
    //to fully detach the process nothing should be piped from or to the parent process 
    stdio: [stdin, fs.openSync('out.log', 'a'), fs.openSync('err.log', 'a')]
})

stdin_test.php

<?php
error_log('php://stdin');
//this should log 'test' but outputs a newline
error_log(trim(fgets(STDIN)));

$t = fopen('/dev/stdin', 'r');

error_log('/dev/stdin:');
//this is working
error_log(trim(fgets($t)));

Related stackoverflow question - Trying to understand the difference between /dev/stdin and php://stdin.