XMLWriter::writePI Writes a PI &reftitle.description; Object oriented style: XMLWriter boolwritePI stringtarget stringcontent Procedural style: boolxmlwriter_write_pi resourcexmlwriter stringtarget stringcontent Writes a processing instruction. &reftitle.parameters; &xmlwriter.xmlwriter.description; target The target of the processing instruction. content The content of the processing instruction. &reftitle.returnvalues; &return.success; &reftitle.seealso;