Encrypt and decrypt text in nodejs

crypto-ctr.js

// Part of https://github.com/chris-rock/node-crypto-examples

// Nodejs encryption with CTR
var crypto = require('crypto'),
    algorithm = 'aes-256-ctr',
    password = 'd6F3Efeq';

function encrypt(text){
  var cipher = crypto.createCipher(algorithm,password)
  var crypted = cipher.update(text,'utf8','hex')
  crypted += cipher.final('hex');
  return crypted;
}
 
function decrypt(text){
  var decipher = crypto.createDecipher(algorithm,password)
  var dec = decipher.update(text,'hex','utf8')
  dec += decipher.final('utf8');
  return dec;
}
 
var hw = encrypt("hello world")
// outputs hello world
console.log(decrypt(hw));

crypto.createCipher has been deprecated. Better to use the iv variants now.

const crypto = require('crypto')
const {algorithm, iv} = require('config').crypto

module.exports = {
	decrypt({cipherText, key}) {
		const decipher = crypto.createDecipheriv(algorithm, key, iv)
		return decipher.update(cipherText, 'hex', 'utf8') + decipher.final('utf8')
	}
	, encrypt({text, key}) {
		const cipher = crypto.createCipheriv(algorithm, key, iv)
		return cipher.update(text, 'utf8', 'hex') + cipher.final('hex')
	}
}

what is your const {algorithm, iv} = require('config').crypto config

my service use PHP but API server user Nodejs

how to write decrypt on PHP example ,
could you help me to solve this trouble ?
thanks