<?

$url = 'https://b24.site.ru/crm/configs/import/lead.php';
$postdata = http_build_query(
	array(
	"LOGIN" => "LEAD_CREATOR",
	"PASSWORD" => "fjdk:nG123V@Y{YP",
	"TITLE" => "тест123" 
	)
);
$context = array(
	'http' =>
    array(
        'method'  => 'POST',
        'header'  => 'Content-Type: application/x-www-form-urlencoded',
        'content' => $postdata
    ),
        "ssl" => array(
            "verify_peer" => false,
            "verify_peer_name" => false
            )
    );

$res = file_get_contents($url, false, stream_context_create($context));

var_dump(json_decode($res, true));