from this xml file i want to delete picture node according to attribute id.
i have written php code but it does not work.
<gallery>
<organizate>
<organization w="3" h="1" space="17"/>
<organization w="4" h="2" space="17"/>
<organization w="6" h="3" space="7"/>
</organizate>
<pictures>
<picture target="events/preview/10picture1.jpg" title="test1" movie="" text="test1" link="events_calender.php" id="38"/>
<picture target="events/preview/8picture7.jpg" title="test2" movie="" text="cxvxc" link="events_calender.php" id="39"/>
<picture target="events/preview/5picture10.jpg" title="test3" movie="" text="test3" link="events_calender.php" id="40"/>
</pictures>
</gallery>
PHP code
$doc = new DOMDocument();
$doc->formatOutput = TRUE;
$doc->preserveWhiteSpace = FALSE;
$xPath = new DOMXPath($doc);
$doc->load('../Event_gallery.xml');
$query = sprintf('//pictures[./picture[#id="%s"]]', 38);
foreach ($xPath->query($query) as $node) {
$node->parentNode->removeChild($node);
}
$doc->save('../Event_gallery.xml');
I think xpath is not working properly. control is not going in foreach
The problem is you are loading the document after you pass the document to DOMXPath.
Change
$xPath = new DOMXPath($doc);
$doc->load('../Event_gallery.xml');
to
$doc->load('../Event_gallery.xml');
$xPath = new DOMXPath($doc);
Then it should work.
To remove just the picture element with the given id instead of the whole parent, change the XPath to
//pictures/picture[#id="38"]
Related
I have the following source code:
<?php
function getTerms()
{
$doc = new DOMDocument();
libxml_use_internal_errors(true);
$doc->loadHTML('https://charitablebookings.com/terms'); // loads your HTML
$xpath = new DOMXPath($doc);
// returns a list of all links with rel=nofollow
$nodeList = $xpath->query("//div[#class='terms-conditions']");
$temp_dom = new DOMDocument();
$node = $nodeList->item(0);
$temp_dom = new DOMDocument();
foreach($nodeList as $n) $temp_dom->appendChild($temp_dom->importNode($n,true));
print_r($temp_dom->saveHTML());
}
getTerms();
?>
which I'm trying to get a text from a web page by getting a specific class. I don't get anything on my browser when I try to print_r the temp_dom. And $node is null. What am I doing wrong ?
Thanks for your time
The first issue is that DOMDocument's loadHTML method expects HTML content as its first parameter, not an URL.
$doc = new DOMDocument();
libxml_use_internal_errors(true);
$html = file_get_contents('https://charitablebookings.com/terms');
$doc->loadHTML($html);
And the second problem is with your XPath expression: $xpath->query("//div[#class='terms-conditions']") - as there is no div with class of terms-conditions in the document (it probably gets added by some JavaScript loader).
I have a XML file and I'm trying to insert a new node between two others with PHP script.
XML file:
<playlistLog>
<hour>
<track>
<type>take</type>
<url>URL</url>
<title>1473869236.wav</title>
<mix>0</mix>
</track>
(...)
</hour>
</playlistLog>
PHP file:
$xmldoc = new DOMDocument();
$xmldoc->load('../logs/log14-09-2016.xml');
$elem = $xmldoc->getElementsByTagName("track");
$track = $xmldoc->createElement('track');
$type = $xmldoc->createElement('type', 'take');
$track->appendChild($type);
$url = $xmldoc->createElement('url', 'url');
$track->appendChild($url);
$title = $xmldoc->createElement('title', 'title');
$track->appendChild($title);
$mix = $xmldoc->createElement('mix', 'mix');
$track->appendChild($mix);
$xmldoc->documentElement->insertBefore($track,$elem[660]);
$xmldoc->save('../logs/log14-09-2016.xml');
I'm trying to insert the new node before "track" tag number 660 but when I try to open the php file it doesn't work at all.
Can anybody tell me what I am doing wrong?
SOLUTION:
After #ThW response I change a bit what he wrotes and finally the code is doing right:
$document = new DOMDocument();
$document->preserveWhiteSpace = FALSE;
$document->load('../logs/log14-09-2016.xml');
$xpath = new DOMXpath($document);
$previousTrack = $xpath->evaluate('/playlistLog/hour/track')->item(659);
$newTrack = $previousTrack->parentNode->insertBefore($document->createElement('track'),$previousTrack);
$newTrack
->appendChild($document->createElement('type'))
->appendChild($document->createTextNode('take'));
$document->formatOutput = TRUE;
echo $document->save('../logs/log14-09-2016.xml');
$elem[660] is the 661st element node with the tag name track. But its parent node is not the document element. Here is another hour ancestor between. The node you're providing to insertBefore() has a different parent then the node you're adding the new element to.
You can use the $parentNode property to make sure that you append to that node.
Additionally I suggest using Xpath to fetch the track node.
$xml = <<<'XML'
<playlistLog>
<hour>
<track>
<type>take</type>
<url>URL</url>
<title>1473869236.wav</title>
<mix>0</mix>
</track>
</hour>
</playlistLog>
XML;
$document = new DOMDocument();
$document->preserveWhiteSpace = FALSE;
$document->loadXml($xml);
$xpath = new DOMXpath($document);
$previousTrack = $xpath->evaluate('/playlistLog/hour/track[1]')->item(0);
$newTrack = $previousTrack
->parentNode
->insertBefore(
$document->createElement('track'),
$previousTrack
);
$newTrack
->appendChild($document->createElement('type'))
->appendChild($document->createTextNode('take'));
$document->formatOutput = TRUE;
echo $document->saveXml();
I'm trying to import one node from one document to another. This throws an 'Wrong Document Error' error:
$xml = <<<XML
<root>
<child1>foo </child1>
<child2> bar</child2>
</root>
XML;
$doc = new DOMDocument;
$new = new DOMDocument;
$doc->loadXML($xml);
$xp = new DOMXPath($doc);
foreach($xp->query('/root/node()') as $element)
{
$new->appendChild($doc->importNode($element, true));
}
echo $new->saveXML();
You want to use $new->importNode... rather than $doc->importNode... as $new is the document you're trying to add the node to.
I have a string of 'source html' and a string of 'replacement html'. In the 'source html' I want to look for a node with a specific class and replace its content with my 'replacement html'. I have tried using the replaceChild method, but this seems to require that I traverse a level up (parentNode).
This doesn't work
$dom = new DOMDocument;
$dom->loadXml($sourceHTML);
$replacement = $dom->createDocumentFragment();
$replacement->appendXML($replacementHTML);
$xpath = new DOMXPath($dom);
$oldNode = $xpath->query('//div[contains(#class,"arrangement--index__field-dato")]')->item(0);
$oldNode->replaceChild($replacement, $oldNode);
This works, but it's not the content which is being replaced
$dom = new DOMDocument;
$dom->loadXml($sourceHTML);
$replacement = $dom->createDocumentFragment();
$replacement->appendXML($replacementHTML);
$xpath = new DOMXPath($dom);
$oldNode = $xpath->query('//div[contains(#class,"arrangement--index__field-dato")]')->item(0);
$oldNode->parentNode->replaceChild($replacement, $oldNode);
How do I replace the content or the node I have queried for?
Instead of replacing the child node, loop over it's children, drop them and insert the new content as child node. Something like
foreach ($oldNode->childNodes as $child)
$oldNode->removeChild($child);
$oldNode->appendChild($replacement);
This will replace the contents (children) instead of the node itself.
This seems to work!
$dom = new DOMDocument;
$dom->loadXml($sourceHTML);
$replacement = $dom->createDocumentFragment();
$replacement->appendXML($replacementHTML);
$xpath = new DOMXPath($dom);
$oldNode = $xpath->query('//div[contains(#class,"arrangement--index__field-dato")]')->item(0);
$oldNode->removeChild($oldNode->firstChild);
$oldNode->appendChild($replacement);
My question is best phrase as:
Remove a child with a specific attribute, in SimpleXML for PHP
except I'm not using simpleXML.
I'm new to XML for PHP so I may not be doing the best way
I have a xml created using the $dom->save($xml) for each individual user. (not placing all in one xml due to undisclosed reasons)
It gives me that xml declaration <?xml version="1.0"?> (no idea how to make it to others, but that's not the point, hopefully)
<?xml version="1.0"?>
<details>
<person>name</person>
<data1>some data</data1>
<data2>some data</data2>
<data3>some data</data3>
<category id="0">
<categoryName>Cat 1</categoryName>
<categorydata1>some data</categorydata1>
</category>
<category id="1">
<categoryName>Cat 2</categoryName>
<categorydata1>some data</categorydata1>
<categorydata2>some data</categorydata2>
<categorydata3>some data</categorydata3>
<categorydata4>some data</categorydata4>
</category>
</details>
And I want to remove a category that has a specific attribute named id with the DOM class in php when i run a function activated from using a remove button.
the following is the debug of the function im trying to get to work. Can i know what I'm doing wrong?
function CatRemove($myXML){
$xmlDoc = new DOMDocument();
$xmlDoc->load( $myXML );
$categoryArray = array();
$main = $xmlDoc->getElementsByTagName( "details" )->item(0);
$mainElement = $xmlDoc->getElementsByTagName( "details" );
foreach($mainElement as $details){
$currentCategory = $details->getElementsByTagName( "category" );
foreach($currentCategory as $category){
$categoryID = $category->getAttribute('id');
array_push($categoryArray, $categoryID);
if($categoryID == $_POST['categorytoremoveValue']) {
return $categoryArray;
}
}
}
$xmlDoc->save( $myXML );
}
Well the above prints me an array of [0]->0 all the time when i slot the return outside the if.
is there a better way? I've tried using getElementbyId as well but I've no idea how to work that.
I would prefer not to use an attribute though if that would make things easier.
Ok, let’s try this complete example of use:
function CatRemove($myXML, $id) {
$xmlDoc = new DOMDocument();
$xmlDoc->load($myXML);
$xpath = new DOMXpath($xmlDoc);
$nodeList = $xpath->query('//category[#id="'.(int)$id.'"]');
if ($nodeList->length) {
$node = $nodeList->item(0);
$node->parentNode->removeChild($node);
}
$xmlDoc->save($myXML);
}
// test data
$xml = <<<XML
<?xml version="1.0"?>
<details>
<person>name</person>
<data1>some data</data1>
<data2>some data</data2>
<data3>some data</data3>
<category id="0">
<categoryName>Cat 1</categoryName>
<categorydata1>some data</categorydata1>
</category>
<category id="1">
<categoryName>Cat 2</categoryName>
<categorydata1>some data</categorydata1>
<categorydata2>some data</categorydata2>
<categorydata3>some data</categorydata3>
<categorydata4>some data</categorydata4>
</category>
</details>
XML;
// write test data into file
file_put_contents('untitled.xml', $xml);
// remove category node with the id=1
CatRemove('untitled.xml', 1);
// dump file content
echo '<pre>', htmlspecialchars(file_get_contents('untitled.xml')), '</pre>';
So you want to remove the category node with a specific id?
$node = $xmlDoc->getElementById("12345");
if ($node) {
$node->parentNode->removeChild($node);
}
You could also use XPath to get the node, for example:
$xpath = new DOMXpath($xmlDoc);
$nodeList = $xpath->query('//category[#id="12345"]');
if ($nodeList->length) {
$node = $nodeList->item(0);
$node->parentNode->removeChild($node);
}
I haven’t tested it but it should work.
Can you try with this modified version:
function CatRemove($myXML, $id){
$doc = new DOMDocument();
$doc->loadXML($myXML);
$xpath = new DOMXpath($doc);
$nodeList = $xpath->query("//category[#id='$id']");
foreach ($nodeList as $element) {
$element->parentNode->removeChild($element);
}
echo htmlentities($doc->saveXML());
}
It's working for me. Just adapt it to your needs. It's not intended to use as-is, but just a proof of concept.
You also have to remove the xml declaration from the string.
the above funciton modified to remove an email from a mailing list
function CatRemove($myXML, $id) {
$xmlDoc = new DOMDocument();
$xmlDoc->load($myXML);
$xpath = new DOMXpath($xmlDoc);
$nodeList = $xpath->query('//subscriber[#email="'.$id.'"]');
if ($nodeList->length) {
$node = $nodeList->item(0);
$node->parentNode->removeChild($node);
}
$xmlDoc->save($myXML);
}
$xml = 'list.xml';
$to = $_POST['email'];//user already submitted they email using a form
CatRemove($xml,$to);