(PHP 5 >= 5.1.2, PECL xmlwriter >= 0.1.0)
XMLWriter::writePI — Writes a PI
Object oriented style
Writes a processing instruction.
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 target of the processing instruction.
The content of the processing instruction.
Returns TRUE on success or FALSE on failure.