# XML specification

The method of dispatch is always **`POST`**

Query headers should always contain

```
Content-type: text/xml; charset=utf-8;
```

Encoding of XML documents: **`UTF-8`**

The transmitted XML document must not contain any string translations

Line translations in the data itself should be replaced with a **`/n`**

#### Server address for sending requests

<mark style="color:red;">`http://lk.mysmpp.ru`</mark>

### Examples of XML transmission

{% tabs %}
{% tab title="PHP" %}
{% code overflow="wrap" %}

```php
// XML-document
$src = '<?xml version="1.0" encoding="utf-8"?><request><security><login value="login" /><password value="password" /></security></request>';  
// server address
$href = 'http://server/script.php'; 
$res = '';
$ch = curl_init();
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-type: text/xml; charset=utf-8'));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_CRLF, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $src);
curl_setopt($ch, CURLOPT_URL, $href);
$result = curl_exec($ch);
$res = $result;
curl_close($ch);
echo $res;
```

{% endcode %}
{% endtab %}
{% endtabs %}


---

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```

The question should be specific, self-contained, and written in natural language.
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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.