title: PHP - Curl give me ????? with Arabic text
body: <p>I have the php code:</p>
  
  <pre><code>$text_message="تجربة";
  $user_phone="xxxxxxx";
  $type_sms="ArabicWithLatinNumbers";
  $url= "https://xxxx/HTTP_SendSms?customerID=xxxxx&amp;userName=xxxxxx&amp;userPassword=xxxxxxxx&amp;originator=xxxxxx&amp;smsText={$text_message}".
  "&amp;recipientPhone={$user_phone}&amp;messageType={$type_sms}&amp;defDate=&amp;blink=false&amp;flash=false&amp;Private=false";
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-Type: text/xml;charset=utf-8"));
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  curl_exec($ch);
  curl_close($ch);
  </code></pre>
  
  <p>but i got this result '?????????' with Arabic text</p>