How to send XML requests from PHP?

Hello *, I have to implement an interface which must access a Domain-Registration API. From the manual I have for example: ----8<------------------------------------------------------------------ Example 2.8. Contact Update:valid(change password) Change password from multipass to green REQUEST: Generic Operation: POST(http://backend.example.com/bdom/contact/update/DOJOB0001/1/,xml) Where xml: <?xml version="1.0" encoding="UTF-8"?> <request xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <type>PERS</type> <sex>MALE</sex> <first-name>Otto</first-name> <last-name>Normalverbraucher</last-name> <organisation>Acme Gmbh</organisation> <street>Main Strasse</street> <number>13</number> <postcode>555555</postcode> <city>Newe Stad</city> <country>DE</country> <phone>+040.0123456789</phone> <fax>+040.0123456789</fax> <email>hans@nictest.de</email> <password>new_secret</password> </request> RESPONSE: <response>1 updated</response> ----8<------------------------------------------------------------------ The problem is (I am sitting on my line) that I do not understand how to send this XML stuff. Any hints please? Thanks, Greetings and nice Day/Evening Michelle Konzack -- ##################### Debian GNU/Linux Consultant ###################### Development of Intranet and Embedded Systems with Debian GNU/Linux Internet Service Provider, Cloud Computing <http://www.itsystems.tamay-dogan.net/> itsystems@tdnet Jabber linux4michelle@jabber.ccc.de Owner Michelle Konzack Gewerbe Strasse 3 Tel office: +49-176-86004575 77694 Kehl Tel mobil: +49-177-9351947 Germany Tel mobil: +33-6-61925193 (France) USt-ID: DE 278 049 239 Linux-User #280138 with the Linux Counter, http://counter.li.org/