how can i make a php post request in the bellow action with api url : http://web2sms.cosmote.gr/web2sms/DCM
<REQUEST Version="1.0" encoding="UTF-8">
<ACTION Name="POSTLogin" />
<PARAMETERS>
<PARAM Type="String" Name="U" Value="Username" />
<PARAM Type="String" Name="P" Value="Password" />
<PARAM Type="String" Name="A" Value="WEB2SMS" />
<PARAM Type="String" Name="ACCOUNT" Value="AccountName" />
<PARAM Type="String" Name="L" Value="Language" />
</PARAMETERS>
</REQUEST>