Hello have worten some php code to parse a xml file as long if i use seperate fields this works like a charm but how i can call a subtree ?
like eg :
<item>
<items>
<date>
<from>2020-03-23</from>
<until>2020-03-27</until>
</date>
</items>
</item>
```
I assume with subtree you mean an element within an element etc.
PHP offers a built in solution for this: simplexml_load_string
$xml = <<<BLOCK
<item>
<items>
<date>
<from>2020-03-23</from>
<until>2020-03-27</until>
</date>
</items>
</item>
BLOCK;
var_dump(simplexml_load_string($xml));
You can read a file directly aswell by using simplexml_load_file.
i have found a solution for this problem i have done the following:
<?php
error_reporting(E_ALL);
$xml_file = simplexml_load_file("converted.xml");
echo $xml_file->date[0]->from;
echo $xml_file->date[0]->until;
?>
```
Related
SUMMARY
Load existing XML-File
Add 2 items to every child
Change order of children
Write new XML-File
DETAILED EXPLANATION
This is a shortened sample of the Source-XML-File
<?xml version="1.0" encoding="ISO-8859-1" standalone="yes"?>
<warehouse>
<inventory>
<name>Name 1</name>
<markers>
<marker>red</marker>
<marker>yellow</marker>
<marker>green</marker>
</markers>
(...)
</inventory>
<inventory>
<name>Name 2</name>
<markers>
<marker>blue</marker>
<marker>pink</marker>
<marker>brown</marker>
</markers>
(...)
</inventory>
<inventory>
<name>Name 3</name>
<markers>
<marker>black</marker>
<marker>white</marker>
<marker>marron</marker>
</markers>
(...)
</inventory>
</warehouse>
1. Load existing XML-File
Load the XML-File into a variable.
$source_xmlfile = "source.xml";
$source_xml_file_contents = simplexml_load_file($source_xmlfile);
2. Add 2 items to every child
Add 2 children to the first inventory with name and value.
$source_xml_file_contents->warehouse->inventory[0]->addChild("new1", "0.12345");
$source_xml_file_contents->warehouse->inventory[0]->addChild("new2", "17");
3. Change order of children
This is the part that doesn't work for me, no matter what I tried.
My idea was the following:
$destination_xml_file_contents = new SimpleXMLElement('<?xml version="1.0" encoding="ISO-8859-1" standalone="yes"?><warehouse></warehouse>');
foreach($source_xml_file_contents->warehouse->inventory as $inventory){
$destination_xml_file_contents->warehouse->addChild("inventory", $inventory);
}
The basic idea is that I take a child (<inventory>) out of <warehouse> and store in in a variable or maybe an array (which would be way better and easier) containing everything that <inventory> contains (including attributes and child nodes and so on).
After I have stored all <inventory> somewhere else I take a new XML and put the stored <inventory> in a new order into the new XML.
However it seems impossible to save a whole child into a variable (or an array) and add it to another XML later.
Since the order is not necessarily in order a simple sort wouldn't help me out here and since I wasn't able to get sorting to work I am at a loss here.
4. Write new XML-File
Save the new XML content to a new XML-File.
$new_xml_file = "destination.xml";
$destination_xml_file_contents->asXML($new_xml_file);
This is a shortened sample of the destination-XML-File
<?xml version="1.0" encoding="ISO-8859-1" standalone="yes"?>
<warehouse>
<inventory>
<name>Name 2</name>
<markers>
<marker>blue</marker>
<marker>pink</marker>
</marker>brown</marker>
</markers>
(...)
<new1>0.6789</new1>
<new2>115</new2>
</inventory>
<inventory>
<name>Name 1</name>
<markers>
<marker>red</marker>
<marker>yellow</marker>
</marker>green</marker>
</markers>
(...)
<new1>0.4567</new1>
<new2>4</new2>
</inventory>
<inventory>
<name>Name 3</name>
<markers>
<marker>black</marker>
<marker>white</marker>
</marker>marron</marker>
</markers>
(...)
<new1>0.1234</new1>
<new2>17</new2>
</inventory>
</warehouse>
Can someone help me to figure out how to make this work?
Right now I'm resorting to parse the whole XML-File and rewrite it line by line with string since SimpleXML doesn't seem to work.
There are a few things which I'm not sure about, but hopefully this code will show the principle of copying the nodes from one document to another (and adding content) using DOMDocument. I've added comments to the code to help, if there is anything you are unsure about, then let me know.
$inFile = "data.xml";
$input = new DOMDocument();
$input->load($inFile);
$all_inventory = $input->getElementsByTagName("inventory");
// Add new content to each item
foreach ( $all_inventory as $inventory ) {
$inventory->appendChild ( $input->createElement("new1", "0.12345"));
$inventory->appendChild ( $input->createElement("new2", "17"));
}
$outFile = "out.xml";
$output = new DOMDocument();
// Create base document for destination
$output->loadXML('<?xml version="1.0" encoding="ISO-8859-1" standalone="yes"?><warehouse />');
// Get the root element as we will be adding content to this
$outputRoot = $output->documentElement;
foreach ( $all_inventory as $inventory ) {
// Copy the element from the input document to the output document
// Note this does not add it anywhere, just makes it available
// The true option says make a deep copy
$import = $output->importNode($inventory, true);
// Add the newly imported node to the output document root
$outputRoot->appendChild($import);
}
$output->save($outFile);
The output is almost just a copy of the input document with the extra data. You could in the second foreach() loop add some logic to order the output elements in some other format, which I'm not sure what that is.
Also note there is a minor XML flaw in your document...
</marker>green</marker>
I want a basic XML generated in PHP and the file can be saved in a directory and be edited...
This is the structure:
<?xml version="1.0" encoding="UTF-8"?>
<user>
<id> 1254</id>
<userName>Melanie Woods</userName>
<channel>
<host> www.natgeo.org </host>
<item> http://animals.natgeo.com/feed.xml </item>
<item> http://birds.natgeo.com/feed.xml </item>
</channel>
/////....The can add as many <'channels'> as they want....
/////And as many <'items'>' in the channel as they want
<channel>
<host> www.bbc.com </host>
<item> http://america.bbc.com/feed.xml </item>
<item> http://asia.bbc.com/feed.xml </item>
<item> http://europe.bbc.com/feed.xml </item>
<item> http://australiue.bbc.com/feed.xml </item>
</channel>
</user>
I have tried so many approaches since some hours now and still can't figure out the best approach to achieve this.
The challenge is how to save the file and call it when the User thinks of adding or removing an item or channel form the XML file.
Let's say they want to Add:
<channel>
<host>www.cnn.com</host>
<item>america.news.cnn.com/fedd.xml</item>
</channel>
and they wish to remove:
<item> http://asia.bbc.com/feed.xml </item> from the bbc.com <channel>
How to pull the file and add the new channel?
What am trying now is using:
<?php
$xml = new SimpleXMLElement("<?xml version=\"1.0\" encoding=\"utf-8\" ?><user></user>");
$id= $xml->addChild('id');
$username = $xml->addChild('userName');
for ($i = 1; $i <= 8; ++$i) {
$channel= $xml->addChild('channel');
$channel->addChild('host', 'www.bbc.com');
$channel->addChild('item','http://asia.bbc.com/feed.xml');
} /**/
Header('Content-type: text/xml');
print($xml->asXML());
?>
This works but doesn't save the file and suffers from adding random amount of items to random number of channels instantaneous.
EDIT: One more thing, when ran, this code produces a Single line XML file difficult to read and **It does not Validate **.
Validator says:
Sorry
This feed does not validate.
line 2, column 0: Undefined root element: user [help]
<user><id/><userName/><channel><host>www.bbc.com</host><item>http://asia.bbc
...
Wish it could produce multiple lines as the sample XML above
Any suggestion?
Just to save you can use $xml->asXML('path/filename.xml');
You can have a look at this post to get some help Using SimpleXML and DOMDocument Together.
I'm using XML to fetch some language data.
The XML markup is as follows:
<language>
<item>
<key>KEY</key>
<string>STRING</string>
</item>
<item>
....
</item>
</language>
I have 2 XML-files with the same markup. I want to load them both with simplexml_load_file. Does anyone know what's the best approach to do this?
I tried something like this:
<?php
$xml = simplexml_load_file('...url_file_1...');
$xml .= simplexml_load_file('...url_file_2...');
?>
But thats not working. But thats what I want: all the data from the 2 (and eventually more) files in one variable.
Edit: I want to make use of the simpleXML library if possible.
I'm trying to use unset() to delete a node in an XML using PHP and can't figure out what is going on here. It doesn't seem to work correctly and I've seen a lot of other questions of similar nature on here but they don't seem to address this issue directly. Here's what my XML looks like:
<?xml version="1.0" encoding="UTF-8"?>
<data>
<user>
<name>Test Name 1</name>
<email>test#test.com</email>
<spouse/>
</user>
<user>
<name>Test Name 2</name>
<email>anotherone#test.com</email>
<spouse>Test Name 3</spouse>
</user>
</data>
My loop that I'm using is like this:
url = 'data/users.xml';
$xml = simplexml_load_file($url);
foreach($xml->user as $theUser){
if($theUser->email[0]=="test#test.com"){
echo "test";
unset($theUser);
}
}
When the e-mail matches "test#test.com" I want to be able to delete that whole user node. It seems that this should work but I can't figure out why it wouldn't? Any help would be greatly appreciated. Thank you!
SimpleXML is fine, no need to switch to DOM, unset() is working fine, if you do it right:
unset($theUser[0]);
see it working: https://eval.in/228773
However there will be a problem with your foreach() if you delete a node mid-loop.
I suggest to use xpath() instead of a loop, IMO elegant and the code is much simpler.
$users = $xml->xpath("/data/user[email='test#test.com']");
will create an array of all <user> with that email-address.
unset($users[0][0]);
will delete the first user in that array.
foreach ($users as $user) unset($user[0]);
will delete the whole array.
see this in action: https://eval.in/228779
SimpeXML is not really meant for changing to the XML structure. Just a simple way of reading the XML.
If you want to manipulate the XML structure you should use the dom functions and more specifically the dom_import_simplexml. This function allows you to import a SimpleXML element and turn it into a DomElement that can be used for manipulation and that includes deletion.
Here is a code sample that solves your problem and demonstrates the usage of dom_import_simplexml.
<?php
$xmlData = '<?xml version="1.0" encoding="UTF-8"?>
<data>
<user>
<name>Test Name 1</name>
<email>test#test.com</email>
<spouse/>
</user>
<user>
<name>Test Name 2</name>
<email>anotherone#test.com</email>
<spouse>Test Name 3</spouse>
</user>
</data>';
$xml = simplexml_load_string($xmlData);
foreach($xml->user as $theUser){
if($theUser->email == 'test#test.com'){
$dom = dom_import_simplexml($theUser);
$dom->parentNode->removeChild($dom);
}
}
echo $xml->asXml();
When reading this code you might be thinking why this works since we dont save the new structure anywhere after we have executed the removeChild function. This works because the DOM functions does not create copies of the underlying objects but instead manipulates them directly.
Result
<?xml version="1.0" encoding="UTF-8"?>
<data>
<user>
<name>Test Name 2</name>
<email>anotherone#test.com</email>
<spouse>Test Name 3</spouse>
</user>
</data>
First of all, I just found this site a few days ago and am very happy it exists.
I am facing a problem with updating a child element from a XML Node.
The xml looks like this:
<?xml version="1.0" encoding="utf-8"?>
<?xml-stylesheet type="text/xsl" href="books.xsl"?>
<books>
<book>
<id>1</id>
<bookname>Title 1</bookname>
<bookurl>SomeURLToMyBook</bookurl>
<clicks>0</clicks>
</book>
<book>
<id>2</id>
<bookname>Title 2</bookname>
<bookurl>SomeURLToMyBook</bookurl>
<clicks>0</clicks>
</book>
</books>
I do know how to retrieve the node for book with (e.g.) ID 2 using:
$xml= simplexml_load_file('books.xml);
I then use xpath to find the correct node. as in:
$booknum= $_GET('booklist'); //booklist is the parameter in the querystring
$arrOutput = $xml->xpath("//*[id='".$booknum."']");
What I try to achieve is to update the clicks element and then save the outcome into the existing XML.
I found several code examples on this site but neither one seems to work for me.
I probably do something wrong but I am not really familiar with PHP (learning new things every day!)
So if anybody is willing to help me out I would be grateful.
TIA