Typy zasobów
When inserting XML DOM Elements inside existing XML DOM Elements that I loaded from an XML file using the following code, none of my new elements were formatted correctly, they just showed up on one line:
<?php
$dom = DOMDocument::load('file.xml');
$dom->formatOutput = true;
//$dom->add some new elements with child nodes somewhere inside the loaded XML using insertBefore();
$dom->saveXML();
//output: everything looks normal but the new nodes are all on one line.
?>
I found I could pass LIBXML_NOBLANKS to the load method and it would reformat the whole document, including my added stuff:
<?php
$dom = DOMDocument::load('file.xml', LIBXML_NOBLANKS);
$dom->formatOutput = true;
//$dom->add some new elements with child nodes somewhere inside the loaded XML using insertBefore();
$dom->saveXML();
//output: everything looks newly formatted, including new nodes
?>
Hope this helps, took me hours of trial and error to figure this out!
Stałe predefiniowane
Poniższe stałe są zdefiniowane w tym rozszerzeniu i stają się dostępne, gdy rozszerzenie jest dokompilowane z PHP, lub załadowane dynamicznie przy starcie.
-
LIBXML_COMPACT(integer) -
Activate small nodes allocation optimization. This may speed up your
application without needing to change the code.
Informacja:
Only available in Libxml >= 2.6.21
-
LIBXML_DTDATTR(integer) - Default DTD attributes
-
LIBXML_DTDLOAD(integer) - Load the external subset
-
LIBXML_DTDVALID(integer) - Validate with the DTD
-
LIBXML_NOBLANKS(integer) - Remove blank nodes
-
LIBXML_NOCDATA(integer) - Merge CDATA as text nodes
-
LIBXML_NOEMPTYTAG(integer) -
Expand empty tags (e.g. <br/> to
<br></br>)
Informacja:
This option is currently just available in the DOMDocument::save and DOMDocument::saveXML functions.
-
LIBXML_NOENT(integer) - Substitute entities
-
LIBXML_NOERROR(integer) - Suppress error reports
-
LIBXML_NONET(integer) - Disable network access when loading documents
-
LIBXML_NOWARNING(integer) - Suppress warning reports
-
LIBXML_NOXMLDECL(integer) -
Drop the XML declaration when saving a document
Informacja:
Only available in Libxml >= 2.6.21
-
LIBXML_NSCLEAN(integer) - Remove redundant namespaces declarations
-
LIBXML_PARSEHUGE(integer) -
Sets XML_PARSE_HUGE flag, which relaxes any hardcoded limit from the parser. This affects
limits like maximum depth of a document or the entity recursion, as well as limits of the
size of text nodes.
Informacja:
Only available in Libxml >= 2.7.0 (as of PHP >= 5.3.2 and PHP >= 5.2.12)
-
LIBXML_XINCLUDE(integer) - Implement XInclude substitution
-
LIBXML_ERR_ERROR(integer) - A recoverable error
-
LIBXML_ERR_FATAL(integer) - A fatal error
-
LIBXML_ERR_NONE(integer) - No errors
-
LIBXML_ERR_WARNING(integer) - A simple warning
-
LIBXML_VERSION(integer) - libxml version like 20605 or 20617
-
LIBXML_DOTTED_VERSION(string) - libxml version like 2.6.5 or 2.6.17
add a note
User Contributed Notes
Stałe predefiniowane
@oneseventeen
05-Feb-2011 04:51
zachatwork at gmail dot com
09-Feb-2010 04:30
Note: The LIBXML_NOXMLDECL constant is defined in this library but is not supported by DOMDocument (yet).
See also: http://bugs.php.net/bug.php?id=47137
<?php
print "PHP_VERSION: ".PHP_VERSION."\n";
print "LIBXML_VERSION: ".LIBXML_VERSION."\n";
print "LIBXML_NOXMLDECL: ".LIBXML_NOXMLDECL."\n";
$dom = new DomDocument();
$dom->loadXML("<foo />");
# This should work but doesn't.
print "DOMDocument doesn't honor LIBXML_NOXMLDECL:\n";
print $dom->saveXML(null,LIBXML_NOXMLDECL);
# This works, and will still work after the above is fixed.
print "Forwards compatible workaround:\n";
$lines = explode("\n", $dom->saveXML(null, LIBXML_NOXMLDECL), 2);
if(!preg_match('/^\<\?xml/', $lines[0]))
print $lines[0];
print $lines[1];
?>
PHP_VERSION: 5.3.1-0.dotdeb.1
LIBXML_VERSION: 20632
LIBXML_NOXMLDECL: 2
DOMDocument doesn't honor LIBXML_NOXMLDECL:
<?xml version="1.0"?>
<foo/>
Forwards compatible workaround:
<foo/>