I have source XML here: http://www.grilykrby.cz/rss/pf-heureka.xml. I want to use this xml feed and create another modified on my own server. I would like to change every node CATEGORYTEXT which contains word Prislusenstvi. I just tried something but I got only the listing of all categories without changing XML :-(
Here is the example of my code. The row $kategorie="nejaka kategorie"; doesn't work.
<?php
$file = "http://www.grilykrby.cz/rss/pf-heureka.xml";
$xml=simplexml_load_file($file);
foreach ($xml->xpath('//SHOPITEM/CATEGORYTEXT') as $kategorie) {
echo $kategorie."<br />";
$kategorie="nejaka kategorie";
}
file_put_contents('test.xml', $xml->asXML());
?>
$kategorie is just a temp variable used in the loop which contains a copy of the data returned by xpath query. You would need to actually set the value directly in the $xml object.
I would personally also consider doing a str_replace or preg_replace within the XML content itself before parsing it into a simpleXML object.
Final Accepted Answer
<?php
$xml = simplexml_load_file('http://www.grilykrby.cz/rss/pf-heureka.xml');
$i=0;
foreach($xml -> SHOPITEM as $polozka) {
if ($polozka -> CATEGORYTEXT == "Příslušenství") $xml -> SHOPITEM[$i] -> CATEGORYTEXT = "Some other text";
$i++;
}
?>
Related
I want to create dynamic tags in XML using PHP
like this : <wsse:Username>fqsuser01</wsse:Username>
the main thing is that I want the tags will change the value inside ---> "wsse"
(like this value)
what I need to do? to create this XML file wite PHP?
Thanks,
For this purpose you can use XMLWriter for example (another option is SimpleXML). Both option are in PHP core so any third party libraries aren't needed. wsse is a namespace - more about them you can read here
I also share with you some example code:
<?php
//create a new xmlwriter object
$xml = new XMLWriter();
//using memory for string output
$xml->openMemory();
//set the indentation to true (if false all the xml will be written on one line)
$xml->setIndent(true);
//create the document tag, you can specify the version and encoding here
$xml->startDocument();
//Create an element
$xml->startElement("root");
//Write to the element
$xml->writeElement("r1:id", "1");
$xml->writeElement("r2:id", "2");
$xml->writeElement("r3:id", "3");
$xml->endElement(); //End the element
//output the xml
echo $xml->outputMemory();
?>
Result:
<?xml version="1.0"?>
<root>
<r1:id>1</r1:id>
<r2:id>2</r2:id>
<r3:id>3</r3:id>
</root>
You could use a string and convert it to XML using simplexml_load_string(). The string must be well formed.
<?php
$usernames= array(
'username01',
'username02',
'username03'
);
$xml_string = '<wsse:Usernames>';
foreach($usernames as $username ){
$xml_string .= "<wsse:Username>$username</wsse:Username>";
}
$xml_string .= '</wsse:Usernames>';
$note=
<<<XML
$xml_string
XML; //backspace this line all the way to the left
$xml=simplexml_load_string($note);
?>
If you wanted to be able to change the namespaces on each XML element you would do something very similar to what is shown above. (Form a string with dynamic namespaces)
The XML portion that I instructed you to backspace all of the way has weird behavior. See https://www.w3schools.com/php/func_simplexml_load_string.asp for an example that you can copy & paste.
I'm using SimpleXML & PHP to parse an XML element in the following form:
<element>
random text with <inlinetag src="http://url.com/">inline</inlinetag> XML to parse
</element>
I know I can reach inlinetag using $element->inlinetag, but I don't know how to reach it in such a way that I can basically replace the inlinetag with a link to the attribute source without using it's location in the text. The result would basically have to look like this:
here is a random text with inline XML
This may be a stupid questions, I hope someone here can help! :)
I found a way to do this using DOMElement.
One way to replace the element is by cloning it with a different name/attributes. Here is is a way to do this, using the accepted answer given on How do you rename a tag in SimpleXML through a DOM object?
function clonishNode(DOMNode $oldNode, $newName, $replaceAttrs = [])
{
$newNode = $oldNode->ownerDocument->createElement($newName);
foreach ($oldNode->attributes as $attr)
{
if (isset($replaceAttrs[$attr->name]))
$newNode->setAttribute($replaceAttrs[$attr->name], $attr->value);
else
$newNode->appendChild($attr->cloneNode());
}
foreach ($oldNode->childNodes as $child)
$newNode->appendChild($child->cloneNode(true));
$oldNode->parentNode->replaceChild($newNode, $oldNode);
}
Now, we use this function to clone the inline element with a new element and attribute name. Here comes the tricky part: iterating over all the nodes will not work as expected. The length of the selected nodes will change as you clone them, as the original node is removed. Therefore, we only select the first element until there are no elements left to clone.
$xml = '<element>
random text with <inlinetag src="http://url.com/">inline</inlinetag> XML to parse
</element>';
$dom = new DOMDocument;
$dom->loadXML($xml);
$nodes= $dom->getElementsByTagName('inlinetag');
echo $dom->saveXML(); //<element>random text with <inlinetag src="http://url.com/">inline</inlinetag> XML to parse</element>
while($nodes->length > 0) {
clonishNode($nodes->item(0), 'a', ['src' => 'href']);
}
echo $dom->saveXML(); //<element>random text with inline XML to parse</element>
That's it! All that's left to do is getting the content of the element tag.
Is this the result you want to achieve?
<?php
$data = '<element>
random text with
<inlinetag src="http://url.com/">inline
</inlinetag> XML to parse
</element>';
$xml = simplexml_load_string($data);
foreach($xml->inlinetag as $resource)
{
echo 'Your SRC attribute = '. $resource->attributes()->src; // e.g. name, price, symbol
}
?>
I am trying to write a code where it will find a specific element in my XML file and then change the value of the text node. The XML file has different namespaces. Till now, I have managed to register the namespaces and also echo the text node of the element, which I want to change.
<?php
$xml = simplexml_load_file('getobs.xml');
$xml->registerXPathNamespace('g','http://www.opengis.net/gml');
$result = $xml->xpath('//g:beginPosition');
foreach ($result as $title) {
echo $title . "\n";
}
?>
My question is: How can I change the value of this element using SimpleXML? I tried to use the nodeValue command but I am not able to make it work.
This is a part of the XML:
<sos:GetObservation xmlns:sos="http://www.opengis.net/sos/1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" service="SOS" version="1.0.0" srsName="urn:ogc:def:crs:EPSG:4326">
<sos:offering>urn:gfz:cawa:def:offering:meteorology</sos:offering>
<sos:eventTime>
<ogc:TM_During xmlns:ogc="http://www.opengis.net/ogc" xsi:type="ogc:BinaryTemporalOpType">
<ogc:PropertyName>urn:ogc:data:time:iso8601</ogc:PropertyName>
<gml:TimePeriod xmlns:gml="http://www.opengis.net/gml">
<gml:beginPosition>2011-02-10T01:10:00.000</gml:beginPosition>
Thanks
Dimitris
In the end I managed to do it by using the PHP XML DOM.
Here is the code that I used in order to change the text node of a specific element:
<?php
// create new DOM document and load the data
$dom = new DOMDocument;
$dom->load('getobs.xml');
//var_dump($dom);
// Create new xpath and register the namespace
$xpath = new DOMXPath($dom);
$xpath->registerNamespace('g','http://www.opengis.net/gml');
// query the result amd change the value to the new date
$result = $xpath->query("//g:beginPosition");
$result->item(0)->nodeValue = 'sds';
// save the values in a new xml
file_put_contents('test.xml',$dom->saveXML());
?>
Not wanting to switch from the code I've already made for SimpleXML, I found this solution:
http://www.dotdragnet.com/forum/index.php?topic=3979.0
Specificially:
$numvotes = $xml->xpath('/gallery/image[path="'.$_GET["image"].'"]/numvotes');
...
$numvotes[0][0] = $votes;
Hope this helps!
I have a PHP script that pulls an XML file from a remote server, and converts it to JSON using simplexml_load_string and json_encode. However, the simplexml_load_string seems to ignore inline attributes, like so:
<AxisFeedrate dataItemId="iid7" timestamp="2012-03-21T15:15:41-04:00" sequence="7" name="Yfrt" subType="ACTUAL" units="MILLIMETER/SECOND">UNAVAILABLE</AxisFeedrate>
In this case the JSON representation would be {AxisFeedrate: 'UNAVAILABLE'}
However, I need to have those attributes available. One idea I've been approaching is replacing strings to turn the attributes into text nodes like so:
<AxisFeedrate>
<dataItemId>iid7</dataItemId>
<timestamp>2012-03-21T15:15:41-04:00</timestamp>
<sequence>7</sequence>
<name>Yfrt</name>
<subType>ACTUAL</subType>
<units>MILLIMETER/SECOND"</units>
<value>UNAVAILABLE</value>
</AxisFeedrate>
I can turn the attributes into their own tag elements with regular find/replace, but I'm having trouble wrapping the original text value in a Value tag, at least with find/replace.
What are some good approaches for doing this? The above chunk of XML is in the middle of many similar chunks on different data items, so I couldn't just start by replacing the first closing > with >...
You could use SimpleXML itself to read the attributes.
Example:
<?php
$xml=simplexml_load_string('<AxisFeedrate dataItemId="iid7" timestamp="2012-03-21T15:15:41-04:00" sequence="7" name="Yfrt" subType="ACTUAL" units="MILLIMETER/SECOND">UNAVAILABLE</AxisFeedrate>');
foreach($xml->attributes() as $k=>$v) {
echo $k." -> ".(string)$v."\n";
}
?>
Output:
dataItemId -> iid7
timestamp -> 2012-03-21T15:15:41-04:00
sequence -> 7
name -> Yfrt
subType -> ACTUAL
units -> MILLIMETER/SECOND
Try this regex: ([\w]*?)="(.*?)" with this replace <$1>$2</$1>\n
You should use SimpleXML. Be aware though, that you have to cast values to string type explicitly, or you'll get objects.
$xml_string = <<<XML
<AxisFeedrate
dataItemId="iid7"
timestamp="2012-03-21T15:15:41-04:00"
sequence="7"
name="Yfrt"
subType="ACTUAL"
units="MILLIMETER/SECOND"
>UNAVAILABLE</AxisFeedrate>
XML;
$xml = simplexml_load_string($xml_string);
$axis_info = array('value' => (string)$xml);
foreach($xml -> attributes() as $attr => $val) {
$axis_info[$attr] = (string) $val;
}
echo json_encode(array("AxisFeedrate" => $axis_info));
Update:
This will give you a more generic version, but notice that the attributes are cast as an array and that this only works on a single element:
$xml_string = <<<XML
<AxisFeedrate dataItemId="iid7" timestamp="2012-03-21T15:15:41-04:00" sequence="7" name="Yfrt" subType="ACTUAL" units="MILLIMETER/SECOND">UNAVAILABLE</AxisFeedrate>
XML;
$xml = simplexml_load_string($xml_string);
$obj_name = $xml -> getName();
$attributes = (array) $xml->attributes();
$axis_info[$obj_name] = $attributes["#attributes"];
$axis_info[$obj_name]['value'] = (string) $xml;
echo json_encode($axis_info);
Given the php code:
$xml = <<<EOF
<articles>
<article>
This is a link
<link>Title</link>
with some text following it.
</article>
</articles>
EOF;
function traverse($xml) {
$result = "";
foreach($xml->children() as $x) {
if ($x->count()) {
$result .= traverse($x);
}
else {
$result .= $x;
}
}
return $result;
}
$parser = new SimpleXMLElement($xml);
traverse($parser);
I expected the function traverse() to return:
This is a link Title with some text following it.
However, it returns only:
Title
Is there a way to get the expected result using simpleXML (obviously for the purpose of consuming the data rather than just returning it as in this simple example)?
There might be ways to achieve what you want using only SimpleXML, but in this case, the simplest way to do it is to use DOM. The good news is if you're already using SimpleXML, you don't have to change anything as DOM and SimpleXML are basically interchangeable:
// either
$articles = simplexml_load_string($xml);
echo dom_import_simplexml($articles)->textContent;
// or
$dom = new DOMDocument;
$dom->loadXML($xml);
echo $dom->documentElement->textContent;
Assuming your task is to iterate over each <article/> and get its content, your code will look like
$articles = simplexml_load_string($xml);
foreach ($articles->article as $article)
{
$articleText = dom_import_simplexml($article)->textContent;
}
node->asXML();// It's the simple solution i think !!
So, the simple answer to my question was: Simplexml can't process this kind of XML. Use DomDocument instead.
This example shows how to traverse the entire XML. It seems that DomDocument will work with any XML whereas SimpleXML requires the XML to be simple.
function attrs($list) {
$result = "";
foreach ($list as $attr) {
$result .= " $attr->name='$attr->value'";
}
return $result;
}
function parseTree($xml) {
$result = "";
foreach ($xml->childNodes AS $item) {
if ($item->nodeType == 1) {
$result .= "<$item->nodeName" . attrs($item->attributes) . ">" . parseTree($item) . "</$item->nodeName>";
}
else {
$result .= $item->nodeValue;
}
}
return $result;
}
$xmlDoc = new DOMDocument();
$xmlDoc->loadXML($xml);
print parseTree($xmlDoc->documentElement);
You could also load the xml using simpleXML and then convert it to DOM using dom_import_simplexml() as Josh said. This would be useful, if you are using simpleXml to filter nodes for parsing, e.g. using XPath.
However, I don't actually use simpleXML, so for me that would be taking the long way around.
$simpleXml = new SimpleXMLElement($xml);
$xmlDom = dom_import_simplexml($simpleXml);
print parseTree($xmlDom);
Thank you for all the help!
You can get the text node of a DOM element with simplexml just by treating it like a string:
foreach($xml->children() as $x) {
$result .= "$x"
However, this prints out:
This is a link
with some text following it.
TitleTitle
..because the text node is treated as one block and there is no way to tell where the child fits in inside the text node. The child node is also added twice because of the other else {}, but you can just take that out.
Sorry if I didn't help much, but I don't think there's any way to find out where the child node fits in the text node unless the xml is consistent (but then, why not use tags). If you know what element you want to strip the text out of, strip_tags() will work great.
This has already been answered, but CASTING TO STRING ( i.e. $sString = (string) oSimpleXMLNode->TagName) always worked for me.
Try this:
$parser = new SimpleXMLElement($xml);
echo html_entity_decode(strip_tags($parser->asXML()));
That's pretty much equivalent to:
$parser = simplexml_load_string($xml);
echo dom_import_simplexml($parser)->textContent;
Like #tandu said, it's not possible, but if you can modify your XML, this will work:
$xml = <<<EOF
<articles>
<article>
This is a link
</article>
<link>Title</link>
<article>
with some text following it.
</article>
</articles>