I have XML file like this :
<?xml version="1.0" encoding="ISO-8859-1"?>
<note>
<to>Tove</to>
<from>Jani</from>
<heading>Reminder</heading>
<body>Don't forget me this weekend!</body>
</note>
And i code in my php page:
<? php
$xmlDoc = new DOMDocument();
$xmlDoc->load("note.xml");
$x = $xmlDoc->documentElement;
foreach ($x->childNodes AS $item)
{
print $item->nodeName . " = " . $item->nodeValue . "<br />";
}
?>
The output of the code above is:
#text =
to = Tove
#text =
from = Jani
#text =
heading = Reminder
#text =
body = Don't forget me this weekend!
#text =
I known that when XML generates, it often contains white-spaces between the nodes. But Anybody can help me loop through all elements of the element of XML bypass white-spaces between the nodes. I mean loop through only all real elements of the element. Pls help me.
Try this
$xmlDoc = new DOMDocument();
$xmlDoc->preserveWhiteSpace = false;
$xmlDoc->load("note.xml");
If you simply want to iterate over the elements (and do no fancy stuff like reordering elements and so on) I'd go for the simplexml-extension, which make dealing with XML much more simple:
$xml = simplexml_load_file('note.xml');
foreach ($xml as $node) {
echo $node->getName() . ' = ' . (string)$node . '<br />';
}
Whatever you do, it will just be symptomatic treatment. The XML file should not contain those newline characters in the first place,as anything between the closing > and opening < is considered a text element.
Related
I've tried what others have posted on stack overflow but it doesn't seem to work for me. So could anyone help please.
I have this xml document with a structure of:
<surveys>
<survey>
<section>
<page>
<reference>P1</reference>
<image><! [CDATA[<img src="imagepath">]]></image>
</page>
<page>
<reference>P2</reference>
<image><! [CDATA[<img src="imagepath">]]></image>
</page>
</section>
</survey>
</surveys>
Then this is my PHP code to get the image to show up:
function xml($survey){
$result = "<surveys></surveys>";
$xml_surveys = new SimpleXMLExtended($result);
$xml_survey = $xml_surveys->addChild('survey');
if ("" != $survey[id]){
$xml_survey_>addChildData($survey['image']);
}
This is my other file:
$image = “”;
if(“” != $image){
$image = <div class=“image_holder”> $image </div>
echo $image;
}
I'm not sure how to progress forward with this. so any help would be appreciated
It looks like you would like to fetch the image for a specific survey id. Well you can use DOM+Xpath To fetch this directly:
$document = new DOMDocument();
$document->loadXML($xml);
$xpath = new DOMXpath($document);
$expression = 'string(
/surveys/survey/section/page[reference="P1"]/image
)';
$imageForSurvey = $xpath->evaluate($expression);
var_dump($imageForSurvey);
Output:
string(22) "<img src="imagepath1">"
The content of the CDATA section inside the image element is a separate HTML fragment. You can use it directly if you trust the source of the XML or you parse it as HTML.
$htmlFragment = new DOMDocument();
$htmlFragment->loadHTML($imageForSurvey);
$htmlXpath= new DOMXpath($htmlFragment);
var_dump(
$htmlXpath->evaluate('string(//img/#src)')
);
Output:
string(10) "imagepath"
Your example-logic is trying to create XML, not load it ;-)
First you need to find the path and/or address to the XML file, like:
$filePath = __DIR__ . '/my-file.xml';
Then load XML:
<?php
$filePath = __DIR__ . '/my-file.xml';
$document = simplexml_load_file($filePath);
$surveyCount = 0;
foreach($document->survey as $survey)
{
$surveyCount = $surveyCount + 1;
echo '<h1>Survey #' . $surveyCount . '</h1>';
foreach($survey->section->page as $page)
{
echo 'Page reference: ' . $page->reference . '<br>';
// Decode your image.
$imageHtml = $page->image;
$dom = new DOMDocument();
$dom->loadHTML($imageHtml);
$xpath= new DOMXpath($dom);
$image = $xpath->evaluate('string(//img/#src)');
if(!empty($image)) {
echo '<div class=“image_holder”>' . $image . '</div>';
}
echo "<br>";
}
}
?>
Note that you should replace <! [CDATA[ with <![CDATA[ (without space),
else you will get StartTag: invalid element name error probably.
I know this should be simple, but I'm new to PHP and just do not understand the documentation I've come across. I need a simple explanation.
I have an XML document that I would like to add nodes to. I can add nodes to the document, they only appear outside of the root node and cause errors to happen on subsequent attempts.
Here is my XML:
<?xml version="1.0" encoding="UTF-8"?>
<root>
</root>
and here is my PHP:
$playerID = "id_" . $_POST['player'];
//load xml file to edit
$xml = new DOMDocument();
$xml->load('../../saves/playerPositions.xml') or die("Error: Cannot load file.");
//check if the player is already in the database
if(isset($xlm->$playerID)){
echo "Player ID was found.";
}
else{
echo "Player ID was not found.";
//so we want to create a new node with this player information
$playerElement = $xml->createElement($playerID, "");
$playerName = $xml->createElement("name", "John Doe");
//add the name to the playerElement
$playerElement->appendChild($playerName);
//add the playerElement to the document
//THIS IS WHERE THE ERROR OCCURS
$xml->root->appendChild($playerElement);
//save and close the document
$xml->formatOutput = true;
$xml->save("../../saves/playerPositions.xml");
}
echo "done";
If I just use $xml->appendChild() then I can modify the document, but the new text appears outside of <root></root>.
The exact error is:
Notice: Undefined property: DOMDocument::$root
$xml->root isn't the correct way to access root element in this context, since $xml is an instance of DOMDocument (It will work if $xml were SimpleXMLElement instead). You can get root element of a DOMDocument object from documentElement property :
$xml->documentElement->appendChild($playerElement);
eval.in demo 1
Or, more generally, you can get element by name using getElementsByTagName() :
$xml->getElementsByTagName("root")->item(0)->appendChild($playerElement);
eval.in demo 2
Further reading : PHP DOM: How to get child elements by tag name in an elegant manner?
That said, this part of your code is also not correct for the same reason (plus a typo?):
if(isset($xlm->$playerID)){
echo "Player ID was found.";
}
Replace with getElementsByTagName() :
if($xml->getElementsByTagName($playerID)->length > 0){
echo "Player ID was found.";
}
You are trying to handle the dom like a Standar Object, but is not.
To look for elements, you need to use the function getElementsByTagName, and handle the dom like a collection of nodes, like this:
$xml = new DOMDocument();
$xml->loadXML('<?xml version="1.0" encoding="UTF-8"?>
<root>
</root>') or die("Error: Cannot load file.");
$len = $xml->getElementsByTagName('player')->length;
if ( $len > 0 ) {
} else {
$player = $xml->createElement('player', '');
$playerName = $xml->createElement('playerName', "Jhon Doe");
$player->appendChild( $playerName );
$root = $xml->getElementsByTagName('root');
if ( $root->length > 0 ) {
$root[0]->appendChild( $player );
}
$xml->formatOutput = true;
echo $xml->saveXML();
}
This code produces:
<?xml version="1.0" encoding="UTF-8"?>
<root>
<player><playerName>Jhon Doe</playerName></player></root>
I've had some success due to the help of StackOverflow community to modify a complex XML source for use with jsTree. However now that I have data that is usable, it is only so if i manually edit the XML to do the following :
Rename all <user> tags to <item>
Remove some elements before the first <user> tag
insert an 'encoding=UTF-8' into the XML opener
and lastly modify the <response> (opening XML tag) to <root>
XML File Example : SampleXML
I have read and read through so many pages on here and google but cannot find a method to achieve the above items.
Point (2) I have found out that by loading it via SimpleXML and using UNSET i can delete the portions I do not require, however I am still having troubles with the rest.
I thought I could perhaps modify the source with SimpleXML (that I am more familiar with) and then continue to modify the code via the help I had been provided before.
<?php
$s = file_get_contents('http://www.fluffyduck.com.au/sampleXML.xml');
$doc1 = simplexml_load_string($s);
unset($doc1->row);
unset($doc1->display);
#$moo = $doc1->user;
echo '<textarea>';
echo $doc1->asXML();
echo '</textarea>';
$doc = new DOMDocument();
$doc->loadXML($doc1);
$users = $doc->getElementsByTagName("user");
foreach ($users as $user)
{
if ($user->hasAttributes())
{
// create content node
$content = $user->appendChild($doc->createElement("content"));
// transform attributes into content elements
for ($i = 0; $i < $user->attributes->length; $i++)
{
$attr = $user->attributes->item($i);
if (strtolower($attr->name) != "id")
{
if ($user->removeAttribute($attr->name))
{
if($attr->name == "username") {
$content->appendChild($doc->createElement('name', $attr->value));
} else {
$content->appendChild($doc->createElement($attr->name, $attr->value));
}
$i--;
}
}
}
}
}
$doc->saveXML();
header("Content-Type: text/xml");
echo $doc->saveXML();
?>
Using recursion, you can create a brand new document based on the input, solving all your points at once:
Code
<?php
$input = file_get_contents('http://www.fluffyduck.com.au/sampleXML.xml');
$inputDoc = new DOMDocument();
$inputDoc->loadXML($input);
$outputDoc = new DOMDocument("1.0", "utf-8");
$outputDoc->appendChild($outputDoc->createElement("root"));
function ConvertUserToItem($outputDoc, $inputNode, $outputNode)
{
if ($inputNode->hasChildNodes())
{
foreach ($inputNode->childNodes as $inputChild)
{
if (strtolower($inputChild->nodeName) == "user")
{
$outputChild = $outputDoc->createElement("item");
$outputNode->appendChild($outputChild);
// read input attributes and convert them to nodes
if ($inputChild->hasAttributes())
{
$outputContent = $outputDoc->createElement("content");
foreach ($inputChild->attributes as $attribute)
{
if (strtolower($attribute->name) != "id")
{
$outputContent->appendChild($outputDoc->createElement($attribute->name, $attribute->value));
}
else
{
$outputChild->setAttribute($attribute->name, $attribute->value);
}
}
$outputChild->appendChild($outputContent);
}
// recursive call
ConvertUserToItem($outputDoc, $inputChild, $outputChild);
}
}
}
}
ConvertUserToItem($outputDoc, $inputDoc->documentElement, $outputDoc->documentElement);
header("Content-Type: text/xml; charset=" . $outputDoc->encoding);
echo $outputDoc->saveXML();
?>
Output
<?xml version="1.0" encoding="utf-8"?>
<root>
<item id="41">
<content>
<username>bsmain</username>
<firstname>Boss</firstname>
<lastname>MyTest</lastname>
<fullname>Test Name</fullname>
<email>lalal#test.com</email>
<logins>1964</logins>
<lastseen>11/09/2012</lastseen>
</content>
<item id="61">
<content>
<username>underling</username>
<firstname>Under</firstname>
<lastname>MyTest</lastname>
<fullname>Test Name</fullname>
<email>lalal#test.com</email>
<logins>4</logins>
<lastseen>08/09/2009</lastseen>
</content>
</item>
...
I'm writing a custom plugin for use in my website using Jw player adtonomy plugin which loads adverts from XML files. However I do not know how to update the nodes in the files. I have tried using simple xml but I don't know how to update. Any implementation is highly regarded. Thanks. Here is the xml file.
<xml>
<plugins>adtimage</plugins>
<adtimage.graphic>http://mysite/default.png</adtimage.graphic>
<adtimage.link>http://targetsite.com</adtimage.link>
<adtimage.positions>pre,post</adtimage.positions>
<adtimage.onpause>true</adtimage.onpause>
<adtimage.txt>Advertisement</adtimage.txt>
<adtimage.btntxt>Click to continue with video</adtimage.btntxt>
</xml>
my code is here.
<?php
$xml = simplexml_load_file("test.xml");
echo $xml->getName() . "<br />";
foreach($xml->children() as $child)
{
echo $child->getName() . ": " . $child . "<br />";
/*
TO DO
change the node value of
<adtimage.graphic>http://mysite/default.png</adtimage.graphic>
to
<adtimage.graphic>http://stackoverflow.com</adtimage.graphic>
*/
}
?>
You can use this
//Load XML
$xml = simplexml_load_file("test.xml");
// Modify a node
$xml->{"adtimage.graphic"} = 'http://stackoverflow.com/adtimage.graphic';
// Saving the whole modified XML to a new filename
$xml->asXml('updated.xml');
Example Output 'updated.xml'
<?xml version="1.0"?>
<xml>
<plugins>adtimage</plugins>
<adtimage.graphic>http://stackoverflow.com/adtimage.graphic</adtimage.graphic>
<adtimage.link>http://targetsite.com</adtimage.link>
<adtimage.positions>pre,post</adtimage.positions>
<adtimage.onpause>true</adtimage.onpause>
<adtimage.txt>Advertisement</adtimage.txt>
<adtimage.btntxt>Click to continue with video</adtimage.btntxt>
</xml>
I have the following XML structure, and I would like to have code that:
INSERTS
DELETES
Delete an entire element based on its TITLE value.
Replace the publisher's value with another value
<Game type="XXX">
<TITLE>XXX</TITLE>
<PUBLISHER>XXX</PUBLISHER>
</Game>
This is my XML structure:
<?xml version="1.0" encoding ="utf-8"?>
<GameStore>
<Game type="adventure">
<TITLE>Assassin's Creed: Brotherhood</TITLE>
<PUBLISHER>Ubisoft</PUBLISHER>
</Game>
<Game type="adventure">
<TITLE>Batman: Arkham Asylum</TITLE>
<PUBLISHER>Eidos</PUBLISHER>
</Game>
</GameStore>
Using SimpleXML:
<?php
// load the XML file
$games = simplexml_load_file('games.xml');
$i = 0;
foreach ($games as $game) {
if ($game->TITLE == 'Batman: Arkham Asylum') {
// remove the Game element
unset($games->Game[$i]);
}
$i++;
}
// save the amended file
$games->asXML('games2.xml');
?>
You will want to use the PHP DOM classes. I think it goes something like this.
To load an XML file.
$xml = new DOMDocument();
$xml->load('path/to/file.xml');
To insert.
$node = $xml->createElement('Game');
$newnode = $xml->appendChild($node);
To delete based on title.
foreach ($xml->Game as $node) {
if ($node->TITLE->nodeValue == 'some_title') {
$xml->removeChild($node);
}
}
etc
more info at http://www.php.net/manual/en/book.dom.php
You will need to learn http://www.php.net/manual/fr/book.dom.php for manipulating xml.
There is some hints :
// Inserts
$new_node = $dom->createElement('foo', 'bar');
$gamestore_node = $xpath->query('/*')->item(0)->appendChild($new_node);
echo $dom->saveXML();
// Delete based on title
$deletable_node = $xpath->query("//Game[TITLE/text() = 'Batman: Arkham Asylum']")->item(0);
$deletable_node->parentNode->removeChild($deletable_node);
echo $dom->saveXML();
// EDIT Replace Publisher's value with another value
$editable_node = $xpath->query("//PUBLISHER[text() = 'Ubisoft']")->item(0);
$editable_node->nodeValue = 'baz';
echo $dom->saveXML();