(PHP 5 >= 5.1.2, PECL xmlwriter >= 0.1.0)
XMLWriter::startDocument — Create document tag
Object oriented style:
Procedural style:
Starts a document.
Only for procedural calls. The XMLWriter resource that is being modified. This resource comes from a call to xmlwriter_open_uri() or xmlwriter_open_memory().
The version number of the document as part of the XML declaration. Defaults to 1.0.
The encoding of the document as part of the XML declaration. NULL by default.
yes or no. NULL by default.
Returns TRUE on success or FALSE on failure.