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 >= 5.1.0)
XMLReader::isValid — Indicates if the parsed document is valid
Descrizione
bool XMLReader::isValid
( void
)
Returns a boolean indicating if the document being parsed is currently valid.
Valori restituiti
Restituisce TRUE in caso di successo, FALSE in caso di fallimento.
Esempi
Example #1 Validating XML
<?php
$xml = XMLReader::open('test.xml');
// You must to use it
$xml->setParserProperty(XMLReader::VALIDATE, true);
var_dump($xml->isValid());
?>
Vedere anche:
- 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
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User Contributed Notes
XMLReader::isValid - [4 notes]
zubin at trattonuovo dot com ¶
3 years ago
remy dot damour at laposte dot net ¶
4 years ago
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 ¶
5 years ago
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 ¶
5 years ago
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.