Request GSMA

RequestGSMA.php

<?php

    $imei = "354408064463695";
    $apiKey = 'C31xxx950';
    $password = 'paxxx#d';
    $salt = 'Dxxx';
    $orgID = 187;
    $secret = 'GSxxxion';
    
    $signatureHash = hash("sh256", $apiKey . $password . $imei);
    $text = $salt . $orgID . "=" . $signatureHash;
    $iv = openssl_random_pseudo_bytes(openssl_cipher_iv_length('aes-256-ecb'));
    
    $authorisation = openssl_encrypt($text, 'aes-256-ecb', $secret, 0, $iv);
    
    $header = array();
    $header[] = 'Content-type: application/x-www-form-urlencoded';
    $header[] = 'Authorisation: ' . $authorisation;
    
    //CREATE PAYLOAD
    $payload    = ['deviceid'    =>  $imei];
    
    // SET CURL URL
    curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0);
    
    //DESIGNATE AS A POST REQUEST
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER , 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($payload));
    
    // Timeouts
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 3);
    curl_setopt($ch, CURLOPT_TIMEOUT, 3);
    
    //EXECUTE REQUEST
    $rawResponse = curl_exec($ch);