XMLReader::getParserProperty
I encountered some problems to use isValid method with xml2assoc function.
I use this way to validate the entire xml file and put it into an associative array.
$xml = new XMLReader();
if (!$xml->xml($xml_string, NULL, LIBXML_DTDVALID)) {
echo "XML not valid: load error";
exit();
}
libxml_use_internal_errors(TRUE);
$xml_array = xml2assoc($xml);
$arErrors = libxml_get_errors();
$xml_errors = "";
foreach ($arErrors AS $xmlError) $xml_errors .= $xmlError->message;
if ($xml_errors != "") {
echo "XML not valid: ".$xml_errors;
exit();
}
//all ok
XMLReader::isValid
(PHP 5 >= 5.1.2)
XMLReader::isValid — Indicates if the parsed document is valid
Opis
bool XMLReader::isValid
( void
)
Returns a boolean indicating if the document being parsed is currently valid.
Zwracane wartości
Zwraca TRUE w przypadku powodzenia, FALSE w
przypadku błędu.
Przykłady
Przykład #1 Validating XML
<?php
$xml = XMLReader::open('test.xml');
// You must to use it
$xml->setParserProperty(XMLReader::VALIDATE, true);
var_dump($xml->isValid());
?>
Zobacz też:
- XMLReader::setParserProperty() - Set parser options
- XMLReader::setRelaxNGSchema() - Set the filename or URI for a RelaxNG Schema
- XMLReader::setRelaxNGSchemaSource() - Set the data containing a RelaxNG Schema
- XMLReader::setSchema() - Validate document against XSD
add a note
User Contributed Notes
XMLReader::isValid
zubin at trattonuovo dot com
20-Jan-2010 04:00
remy dot damour at laposte dot net
31-Dec-2008 04:27
1. If you validate against relax-ng, no need to call $xml->setParserProperty(XMLReader::VALIDATE, true);
2. Be aware that $xml->isValid() will return validity for currently active node (ie. node currently positioned using $xml->read()). It won't check validity of your entire tree at once, but rather on a step by step basis
anzenews at volja dot net
22-Jan-2008 11:50
This comment is only partially correct:
"isValid() always returns false unless you enable checking for validity by $reader->setParserProperty(XMLReader::VALIDATE, true);"
This enables DTD checking, but you can also check by using RelaxNG (see setRelaxNGSchema() and setRelaxNGSchemaSource()).
And also, this is NOT correct:
"If you just need to check if XML file is well formed, successful loading into XMLReader object is usually enough."
It is not enough. Pull parsers operate on stream and if you have a large enough file they will not know it is well formed until it is read to the end. If you need to know if it is well formed or/and valid, read it till the end or validation error (you can use next() for fast reading if you don't care about contents).
patryk dot szczyglowski at gmail dot com
21-Dec-2007 07:10
isValid() always returns false unless you enable checking for validity by:
$reader->setParserProperty(XMLReader::VALIDATE, true);
where $reader is XMLReader object.
Beware, once you enable this check, PHP will search for DTD file and possibly produce warnings.
If you just need to check if XML file is well formed, successful loading into XMLReader object is usually enough.