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@hubgit hubgit/doctype-test.php
Last active Aug 29, 2015

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Demo script showing separation of doctype from source document during XSLTProcessor::transformToDoc
// prepare the XSL processor
$stylesheet = new DOMDocument;
$stylesheet->loadXML('<xsl:stylesheet xmlns:xsl="" version="1.0"/>');
$processor = new XSLTProcessor;
// load the XML (with a doctype)
$doc = new DOMDocument;
$doc->loadXML('<?xml version="1.0"?>
<!DOCTYPE article PUBLIC "-//example//EN" "">
printf("Doctype ID: %s\n", $doc->doctype->publicId); // Doctype ID: -//example//EN
printf("Next sibling: %s\n\n", $doc->doctype->nextSibling->nodeName); // 'article'
// write out the original document (has doctype)
print $doc->saveXML();
<?xml version="1.0"?>
<!DOCTYPE article PUBLIC "-//example//EN" "">
// transform the document (transformToDoc or transformToXML)
// this is where the doctype gets unexpectedly separated
// normally $output would be used, but is ignored here
$output = $processor->transformToDoc($doc);
// the doctype is still there, but has no nextSibling
printf("\nDoctype ID: %s\n\n", $doc->doctype->publicId); // Doctype ID: -//example//EN
//printf("Next sibling: %s\n", $doc->doctype->nextSibling->nodeName); // no nextSibling
// write out the original document again (no doctype)
print $doc->saveXML();
<?xml version="1.0"?>
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