Bug #6525
openXdmNode::getChildren() returns always null - Should be array
0%
Description
Version/Platform:
SaxonC-EE 12.5 (compiled in Linux)
Summary:
After validating an XSD schema and getting the report, XdmNode::getChildren()
returns always null
even though there are errors (nodes).
Reproduce Steps:
Executing this code you'll get comparison between getChildren()
which returns NULL
vs. getting first node's child XdmNode
and grabbing attributes and values manually.
<?php
require 'vendor/autoload.php';
use Saxon\SaxonProcessor;
putenv('SAXONC_HOME=.saxon');
$xsdSchema = 'schema.xsd';
$schemaString = '<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="person">
<xs:complexType>
<xs:sequence>
<xs:element name="name" type="xs:string" />
<xs:element name="age" type="xs:integer" />
<xs:element name="email" type="xs:string" />
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>';
file_put_contents($xsdSchema, $schemaString);
$xmlFile = 'payload.xml';
$xmlString = '<?xml version="1.0" encoding="UTF-8"?>
<person>
<name>Jane Doe</name>
<age>twenty-five</age>
<email>jane.doe@example</email>
</person>';
file_put_contents($xmlFile, $xmlString);
$processor = new SaxonProcessor(true);
$validator = $processor->newSchemaValidator();
$validator->registerSchemaFromFile($xsdSchema);
$validator->setProperty('report-node', true);
try {
$validator->validate($xmlFile);
} catch (Exception $e) {
$report = $validator->getValidationReport();
echo '=============================='.PHP_EOL;
echo '=== $report->getChildren() ==='.PHP_EOL;
echo '=============================='.PHP_EOL;
var_dump($report->getChildren());
echo '=============================='.PHP_EOL;
echo PHP_EOL . PHP_EOL;
echo '=========================================='.PHP_EOL;
echo '=== $report->getChildNode(0) iteration ==='.PHP_EOL;
echo '=========================================='.PHP_EOL;
$xmlDocument = $processor->parseXmlFromFile($xmlFile);
$xpathProcessor = $processor->newXPathProcessor();
$xpathProcessor->setContextItem($xmlDocument);
$reportNode = $report->getChildNode(0);
for ($i = 0; $i < $reportNode->getChildCount(); $i++) {
$node = $reportNode->getChildNode($i);
$attributes = $node->getAttributeNodes();
if (!$attributes) {
continue;
}
$message = $node->getStringValue();
$nodeName = $node->getNodeName();
$nodeValue = $node->getStringValue();
preg_match('/<([^<>]+)>/', $message, $matches);
$extracted = $matches[1];
/** @var \Saxon\XdmNode $attributeNode */
foreach ($node->getAttributeNodes() as $attributeNode) {
$message = $node->getStringValue();
match ($attributeNode->getNodeName()) {
'line' => $line = $attributeNode->getStringValue(),
'column' => $column = $attributeNode->getStringValue(),
'path' => $path = $attributeNode->getStringValue(),
default => null,
};
}
$invalidNode = $xpathProcessor->evaluateSingle($path);
$invalidNodeValue = $invalidNode?->getStringValue();
echo "Message: $message".PHP_EOL;
echo "Node Name: $nodeName".PHP_EOL;
echo "Node Value: $nodeValue".PHP_EOL;
echo 'Invalid element: '.$extracted.PHP_EOL;
echo 'Invalid Value: '.$invalidNodeValue.PHP_EOL;
echo 'Line: '.$line.PHP_EOL;
echo 'Column: '.$column.PHP_EOL;
echo 'Path: '.$path.PHP_EOL;
}
}
Outcome of the previous code:
==============================
=== $report->getChildren() ===
==============================
NULL
==============================
==========================================
=== $report->getChildNode(0) iteration ===
==========================================
Message: The content "twenty-five" of element <age> does not match the required simple type. Cannot convert string "twenty-five" to an integer: contains a character 't'(#x74) that is not a digit
Node Name: Q{http://saxon.sf.net/ns/validation}error
Node Value: The content "twenty-five" of element <age> does not match the required simple type. Cannot convert string "twenty-five" to an integer: contains a character 't'(#x74) that is not a digit
Invalid element: age
Invalid Value: twenty-five
Line: 4
Column: 25
Path: /Q{}person[1]/Q{}age[1]
Updated by Martin Honnen 3 months ago
The problems appears to to exist with any XdmNode in the PHP API, even a simple
$xml = <<<XML
<root att1="value 1" att2="value 2">
<foo>bar</foo>
</root>
<!-- comment 1 -->
XML;
$saxonProc = new Saxon\SaxonProcessor();
$xdmNode = $saxonProc->parseXmlFromString($xml);
echo $xdmNode->getChildCount();
$root = $xdmNode->getChildNode(0);
$attributes = $root->getAttributeNodes();
var_dump($attributes);
$children = $xdmNode->getChildren();
var_dump($children);
outputsan array for getAttributeNodes
but NULL for the getChildren
.
2array(2) {
[0]=>
object(Saxon\XdmNode)#4 (0) {
}
[1]=>
object(Saxon\XdmNode)#5 (0) {
}
}
NULL
Updated by Martin Honnen 3 months ago
The example https://saxonica.plan.io/projects/saxonmirrorhe/repository/he/revisions/he_mirror_saxon_12_5/entry/src/main/c/samples/php/xpathExamples.php#L159 also fails to output the children.
Not sure why that stuff doesn't work from PHP, it appears to be working with C++ and Python.
Updated by Michael Kay 3 months ago
- Project changed from Saxon to SaxonC
- Category deleted (
Schema-Aware processing) - SaxonC Platforms All added
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