request.php

<?php

class Request
{
    private $is_last_session_id;
    
    public function send($s_url, $data)
    {

        $params = [
            'http' => [
                'method'  => 'POST',
                'content' => $data,
                'header'  => "Content-type: application/x-www-form-urlencoded",
            ],
        ];

        $ctx = stream_context_create($params);
        
        ini_set('user_agent', 'PHP Client /5.2.00');
        
        $fp = fopen($s_url, 'rb', false, $ctx);

        $response = stream_get_contents($fp);

        $meta = stream_get_meta_data($fp);

        foreach (array_keys($meta) as $h) {
            $v = $meta[$h];
            if (is_array($v)) {
                foreach (array_keys($v) as $hh) {
                    $vv = $v[$hh];
                    if (is_string($vv) && substr_count($vv, 'JSESSIONID')) {
                        $this->is_last_session_id = substr($vv, strpos($vv, '=') + 1, 24);
                    }
                }
            }
        }

        return $response;
    }
}