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Here's my PHP code to print Cardano coin node information on localhost:

<?php
class Cardano {
 private $host;
 private $port;
 private $disableSSLVerification;
 public $httpCode;

 // The option to not use an SSL certificate doesn't work anymore, so you need to tell curl where to find the certificate.
 const pem = '/home/softmac/Documents/cardano-sl/state-wallet-mainnet/tls/client/client.pem';

 public function getInfo() 
 $infos = json_encode($this->get('/api/v1/node-info') , true);
 print_r($infos);
 

 private static function jsonDecode(string $content):
 array 

 $data = json_decode($content, true);
 if (!is_array($data)) throw new Exception($content);
 else

 //print_r($data['data']); //----it will print array/value of any data
 return $data;
 

 // CURL Get
 public function get(string $endPoint):
 string 
 $ch = curl_init();
 curl_setopt($ch, CURLOPT_AUTOREFERER, true);
 curl_setopt($ch, CURLOPT_HEADER, 0);
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
 curl_setopt($ch, CURLOPT_URL, $this->host . ':' . $this->port . $endPoint);
 curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
 curl_setopt($ch, CURLOPT_SSLCERT, Cardano::pem);
 //curl_setopt($ch, CURLOPT_SSLVERSION, 2);
 if ($this->disableSSLVerification) 
 curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
 
 $data = curl_exec($ch);
 $this->httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
 if (curl_exec($ch) === false) 
 throw new Exception('Curl error: ' . curl_error($ch));
 
 curl_close($ch);
 return $data;
 
 $client = new Cardano('https://127.0.0.1', 8090, true);
 print_r($client->getInfo());
?>

This code successfully runs on command line using php hello.php . It prints nothing on localhost(browser) as I have apache2 on my system.