xmlwriter_write_pi Write full PI tag - returns FALSE on error &reftitle.description; boolxmlwriter_write_pi resourcexmlwriter stringtarget stringcontent &warn.undocumented.func; &reftitle.parameters; xmlwriter Its description target Its description content Its description &reftitle.returnvalues; What the function returns, first on success, then on failure. See also the &return.success; entity