PHP - Multiple Text Nodes For A Parent Node

Hi guys,

I'm using PHP Simple DOM, thanks to the good folk her I'm making progress. The html i'm parsing has a bunch of links in a li ul structure. I've managed to get the top layer of links extracted and I would like to have a count of the number of child nodes in the layer below the main links. Here is my code:

$html = file_get_html('test/php/book.html');

if(!empty($html)){  
    
    $lis = $html->find('.chunklist', 0)->children() ;

    for ( $i = 0 ; $i < count($lis) ; $i++ ) {

        $parent_term = $lis[$i]->first_child()->innertext . ', ' ;
        $parent_node = $lis[$i]->children[0]->attr['href'] . '<br>' ; 
    
        //echo count($parent_node->children()) ; this gives error Warning: count(): Parameter must be an array or an object that implements Countable
        echo $parent_term . $parent_node ;

        $parent_node = $const . $parent_node ; 
        echo $parent_node ;
        
        $html2 = file_get_html($parent_node) ;
        $lis2 = $html2->find('.chunklist', 0)->children() ; 
    }
}

I don't see anything in the manual regarding counting nodes, any idea how to go about this?

good day dear phpfreaks. 

 

I am new to PHP's SimpleXML. i want to work with SimpleXML on OSM-files.

The original version of this question was derived from he OSM Data parsing to get the nodes with child 

https://stackoverflow.com/questions/16129184/osm-data-parsing-to-get-the-nodes-with-child

I am thankful that hakre offered a great example in the comments that makes a overwhelming 
starting point for my project. Below I have added my own answer to the question, how to refine the code to ad more tags. I can work on the methods using SimpleXML and Xpath; The job is most easily done with xpath, the used PHP XML library is based on libxml  which supports XPath 1.0 which covers the various querying needs very well.

goal: how to get more out of it: I want to filter the data to get the nodes with special category. Here is sample of the OSM data I want to get the whole schools within an area. The first script runs well - but now I want to refine the search and add more tags. Finally I want to store all into MySQL.

So we need to make some XML parsing with PHP:

The following is a little OSM Overp
 

 

 

Quote

 

# get all school nodes with xpath
$xpath = '//node[tag[@k = "amenity" and @v = "school"]]';
$schools = $result->xpath($xpath);
printf("%d School(s) found:\n", count($schools));
foreach ($schools as $index => $school)
{
    # Get the name of the school (if any), again with xpath
    list($name) = $school->xpath('tag[@k = "name"]/@v') + ['(unnamed)'];
    printf("#%02d: ID:%' -10s  [%s,%s]  %s\n", $index, $school['id'], $school['lat'], $school['lon'], $name);
}

since i am learning - i break down the code into pieces...For my question, the second part is more interesting here.

That is querying the XML data we have already. Again - as mentioned above: This is most easily done with xpath, the used PHP XML library is based on libxml which supports XPath 1.0  which covers the various querying needs very well. The following example lists all schools and tries to obtain their names as well.

# get all school nodes with xpath
$xpath = '//node[tag[@k = "amenity" and @v = "school"]]';
$schools = $result->xpath($xpath);
printf("%d School(s) found:\n", count($schools));
foreach ($schools as $index => $school)
{
    # Get the name of the school (if any), again with xpath
    list($name) = $school->xpath('tag[@k = "name"]/@v') + ['(unnamed)'];
    printf("#%02d: ID:%' -10s  [%s,%s]  %s\n", $index, $school['id'], $school['lat'], $school['lon'], $name);
}
The key point here are the xpath queries: Two are used, the first one to get the nodes that have certain tags.

//node[tag[@k = "amenity" and @v = "school"]]

This line says: Give me all node elements that have a tag element inside which has the k attribute value "amenity" and the v attribute value "school". Explanation: This is the condition we have to filter out those nodes that are tagged with amenity school.

Further on xpath is used again - a second time: now relative to those school nodes to see if there is a name and if so to fetch it: Therefore we use the foreach-syntax:

foreach ($schools as $index => $school)
{
    # Get the name of the school (if any), again with xpath
    list($name) = $school->xpath('tag[@k = "name"]/@v') + ['(unnamed)'];
    printf("#%02d: ID:%' -10s  [%s,%s]  %s\n", $index, $school['id'], $school['lat'], $school['lon'], $name);
}
and

tag[@k = "name"]/@v'
= $school->xpath('tag[@k = "name"]/@v') + ['(unnamed)'];
and this is pretty important

tag[@k = "name"]/@v'
This line says: Relative to the current node, give me the v attribute from a tag element that as the k attribute value "name". As you can see, some parts are again similar to the line before. I think you can both adopt them to your needs.

Because not all school nodes have a name, a default string is provided for display purposes by adding it to the (then empty) result array:

list($name) = $school->xpath('tag[@k = "name"]/@v') + ['(unnamed)'];
                                                    ^^^^^^^^^^^^^^^
                                                Provide Default Value
So here some of the results for that code-example:

Query returned 907 node(s) and took 1.10735 seconds.
more than 2000 School(s) found:
#00: ID:332534486   [39.5017565,16.2721899]  Scuola Primaria
#01: ID:1428094278  [39.3320912,16.1862820]  (unnamed)
#02: ID:1822746784  [38.9075566,16.5776597]  (unnamed)
#03: ID:1822755951  [38.9120272,16.5713431]  (unnamed)
#04: ID:1903859699  [38.6830409,16.5522243]  Liceo Scientifico Statale A. Guarasci
#05: ID:2002566438  [39.1347698,16.0736924]  (unnamed)
#06: ID:2056891127  [39.4106679,16.8254844]  (unnamed)
#07: ID:2056892999  [39.4124687,16.8286119]  (unnamed)
#08: ID:2272010226  [39.4481717,16.2894353]  SCUOLA DELL'INFANZIA SAN FRANCESCO
#09: ID:2272017152  [39.4502366,16.2807664]  SCUOLA MEDIA 
and now i try to figure out how i can enter more xpath queries at the above mentioned code

goal: to get out even more important data - see here Key:contact - OpenStreetMap Wiki

   

Well - we are already extracting the name: If we want to have more data then we just have to run a few more xpath queries inside our loop for all the address keys and the website. So - additionally: we do not have to forget to look for the website key additional to contact:website. cf: https://wiki.openstreetmap.org/wiki/Key:website

conclusio: well - i think that i need to extend the xpath requests within the loop where xpath is used again,  now relative to those school nodes to see if there is a name and if so to fetch it:

tag[@k = "name"]/@v'
tag[@k = "contact:website"]/@v'
tag[@k = "contact:email"]/@v'
What do you say...?

i did some further tess and found out very interesting things

see more he - the code that runs very well:

#'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''#
<?php
/**
 * OSM Overpass API with PHP SimpleXML / XPath
 *
 * PHP Version: 5.4 - Can be back-ported to 5.3 by using 5.3 Array-Syntax (not PHP 5.4's square brackets)
 */
//
// 1.) Query an OSM Overpass API Endpoint
//

$query = 'node
  ["amenity"~".*"]
  (38.415938460513274,16.06338500976562,39.52205163048525,17.51220703125);
out;';

$context = stream_context_create(['http' => [
    'method'  => 'POST',
    'header' => ['Content-Type: application/x-www-form-urlencoded'],
    'content' => 'data=' . urlencode($query),
]]);

# please do not stress this service, this example is for demonstration purposes only.
$endpoint = 'http://overpass-api.de/api/interpreter';
libxml_set_streams_context($context);
$start = microtime(true);

$result = simplexml_load_file($endpoint);
printf("Query returned %2\$d node(s) and took %1\$.5f seconds.\n\n", microtime(true) - $start, count($result->node));

//
// 2.) Work with the XML Result
//

# get all school nodes with xpath
$xpath = '//node[tag[@k = "amenity" and @v = "school"]]';
$schools = $result->xpath($xpath);
printf("%d School(s) found:\n", count($schools));
foreach ($schools as $index => $school)
{
    # Get the name of the school (if any), again with xpath
    list($name) = $school->xpath('tag[@k = "name"]/@v') + ['(unnamed)'];
    printf("#%02d: ID:%' -10s  [%s,%s]  %s\n", $index, $school['id'], $school['lat'], $school['lon'], $name);
}

//node[tag[@k = "amenity" and @v = "school"]]
//tag[@k = "name"]/@v'

$query = 'node
  ["addr:postcode"~"RM12"]
  (51.5557914,0.2118915,51.5673083,0.2369398);
   node
  (around:1000)
  ["amenity"~"fast_food"];
           out;';

$context = stream_context_create(['http' => [
    'method'  => 'POST',
    'header' => ['Content-Type: application/x-www-form-urlencoded'],
    'content' => 'data=' . urlencode($query),
]]);

$endpoint = 'http://overpass-api.de/api/interpreter';
libxml_set_streams_context($context);

$result = simplexml_load_file($endpoint);
printf("Query returned %2\$d node(s) and took %1\$.5f seconds.\n\n", microtime(true) - $start, count($result->node));
see the results:

me/martin/dev/php/o1.php on line 68
linux-3645:/home/martin/dev/php # php o1.php
Query returned 2799 node(s) and took 17.02055 seconds.

33 School(s) found:
#00: ID:332534486   [39.5018840,16.2722854]  Scuola Elementare
#01: ID:1428094278  [39.3320912,16.1862820]  (unnamed)
#02: ID:1822746784  [38.9075566,16.5776597]  (unnamed)
#03: ID:1822755951  [38.9120272,16.5713431]  (unnamed)
#04: ID:2002566438  [39.1349460,16.0736446]  (unnamed)
#05: ID:2056891127  [39.4106679,16.8254844]  (unnamed)
#06: ID:2056892999  [39.4124687,16.8286119]  (unnamed)
#07: ID:2272010226  [39.4481717,16.2894353]  Scuola dell'infanzia San Francesco
#08: ID:2272017152  [39.4502366,16.2807664]  Scuola Media
#09: ID:2358307794  [39.5015031,16.3905965]  I.I.S.S. Liceo Statale V. Iulia
#10: ID:2358307796  [39.4926280,16.3853662]  Liceo Classico
#11: ID:2358307797  [39.4973761,16.3858275]  Scuola Media
#12: ID:2358307800  [39.5015527,16.3941156]  I.T.C. e per Geometri
#13: ID:2358307801  [39.4983862,16.3807796]  Istituto Professionale
#14: ID:2448031004  [38.6438417,16.3873106]  (unnamed)
#15: ID:2458139204  [39.0803263,17.1291649]  Sacro Cuore
#16: ID:2552412313  [39.0765212,17.1224610]  (unnamed)
#17: ID:2582443083  [39.0815417,17.1178983]  Liceo Socio Biologico Gravina
#18: ID:2585754364  [38.8878393,16.4076323]  Scuola Elementare
#19: ID:2585754366  [38.8877600,16.4076216]  Scuola Media
#20: ID:3071126720  [38.6022703,16.5554408]  Scuola Media
#21: ID:3071127683  [38.6027273,16.5563125]  Scuola Elementare
#22: ID:3081362915  [39.2865638,16.2601963]  Convitto Nazionale Bernardino Telesio
#23: ID:3081362921  [39.2856714,16.2613594]  Liceo Classico B. Telesio
#24: ID:3081362926  [39.2888949,16.2577446]  Scuola
#25: ID:3732551794  [39.5132435,16.2863285]  (unnamed)
#26: ID:3740289655  [39.5167318,16.2838146]  scuola media
#27: ID:3740289656  [39.5164344,16.2821103]  scuola elementare
#28: ID:4004532684  [38.7804787,16.5122952]  Liceo Artistico
#29: ID:4589289756  [38.6794209,16.1063084]  Scuola Comprensiva Trentacapilli
#30: ID:4843966477  [39.0709866,17.1288384]  Pegaso
#31: ID:5297629775  [38.5768845,16.3263536]  Scuola Media Statale "Ignazio La Russa"
#32: ID:5316865306  [39.0807997,17.1264225]  Enrico Fermi
Query returned 3 node(s) and took 17.44780 seconds.

so far so good : if i add some lines in the part 2 i run into errors... -see below:
background: i want to get more data out of the dataset - i wnat to have more information about.

i want to get more data out of it:  - and coded like so;

{
    # Get the name of the school (if any), again with xpath
    list($name) = $school->xpath('tag[@k = "name"]/@v') + ['(unnamed)'];
    list($name) = $school->xpath('tag[@k = "contact:website"]/@v');
    list($name) = $school->xpath('tag[@k = "contact:email"]/@v');
    printf("#%02d: ID:%' -10s  [%s,%s]  %s\n", $index, $school['id'], $school['lat'], $school['lon'], $name);
}

note - within the part 2 that works with the XML-Result.

//
// 2.) Work with the XML Result
//

# get all school nodes with xpath
$xpath = '//node[tag[@k = "amenity" and @v = "school"]]';
$schools = $result->xpath($xpath);
printf("%d School(s) found:\n", count($schools));
foreach ($schools as $index => $school)
{
    # Get the name of the school (if any), again with xpath
    list($name) = $school->xpath('tag[@k = "name"]/@v') + ['(unnamed)'];
    list($name) = $school->xpath('tag[@k = "contact:website"]/@v');
    list($name) = $school->xpath('tag[@k = "contact:email"]/@v');
    printf("#%02d: ID:%' -10s  [%s,%s]  %s\n", $index, $school['id'], $school['lat'], $school['lon'], $name);
}
the question is: how to get more out of it.. at least the address and the website and now i try to figure out how i can enter more xpath queries at the above mentioned code and get out even more important data - see here Key:contact - OpenStreetMap Wiki

    contact:phone
    contact:fax    
    contact:website
    contact:email

I will dig into all documents and come back later the weekend... and report all the findings

well - i think that i need to extend the xpath requests within the loop where xpath is used again, now relative to those school nodes to see if there is a name and if so to fetch it:

tag[@k = "name"]/@v'
tag[@k = "contact:website"]/@v'
tag[@k = "contact:email"]/@v'

 

Edited April 25, 2019 by dil_bert
more infos

good day dear experts, 

I am new to PHP's SimpleXML. - i have issues wiht it - and with the process of filter to get the nodes with special category :: PHP SimpleXML I want to filter the data to get the nodes with special category. Here is sample of the OSM data I want to get the whole schools within an area. The first script runs well - but now I want to refine the search and add more tags. I want to store all into MySQL. So we need to make some XML parsing with PHP: The following is a little OSM Overpass API example with PHP SimpleXML

<?php
/**
 * OSM Overpass API with PHP SimpleXML / XPath
 *
 * PHP Version: 5.4 - Can be back-ported to 5.3 by using 5.3 Array-Syntax (not PHP 5.4's square brackets)
 */
 //
// 1.) Something is wrong an OSM Overpass API Endpoint
//
	$Something is wrong = 'node
  ["addr:postcode"~"RM12"]
  (51.5557914,0.2118915,51.5673083,0.2369398)->.point;
  (
  node
  (around.point:100000)
  ["amenity"~"school"];
  way
  (around.point:100000)
  ["amenity"~"school"];
  );
  out;';
	$context = stream_context_create(['http' => [
    'method'  => 'POST',
    'header' => ['Content-Type: application/x-www-form-urlencoded'],
    'content' => 'data=' . urlencode($Something is wrong),
]]);
	# please do not stress this service, this example is for demonstration purposes only.
$endpoint = 'http://overpass-api.de/api/interpreter';
libxml_set_streams_context($context);
$start = microtime(true);
	$result = simplexml_load_file($endpoint);
printf("Something is wrong returned %2\$d node(s) and took %1\$.5f seconds.\n\n", microtime(true) - $start, count($result->node));
	//
// 2.) Work with the XML Result
//
	# get all school nodes with xpath
$xpath = '//node[tag[@k = "amenity" and @v = "school"]]';
$schools = $result->xpath($xpath);
printf("%d School(s) found:\n", count($schools));
foreach ($schools as $index => $school)
{
    # Get the name of the school (if any), again with xpath
    list($name) = $school->xpath('tag[@k = "name"]/@v') + ['(unnamed)'];
    printf("#%02d: ID:%' -10s  [%s,%s]  %s\n", $index, $school['id'], $school['lat'], $school['lon'], $name);
}
	

well i get back an issue-report;: 

FATAL ERROR syntax error, unexpected 'is' (T_STRING) on line number 11

 

 

well at the moment i try to make up my mind what is going on here

Hello
I have xml like this.

<?xml version="1.0" encoding="utf-8"?>
<data>
   <item ID="30001">
      <Company>Navarro Corp.</Company>
   </item>
   <item ID="30002">
      <Company>Performant Systems</Company>
   </item>
   <item ID="30003">
      <Company>Digital Showcase</Company>
   </item>
</data>


All i need to do is get any one of the  whole node from starting item tag to ending item tag from the xml, for example.  getting

<item ID="30002">
      <Company>Performant Systems</Company> 
   </item>

from whole xml file.

Can this be achieved using  SimpleXML object from PHP? if not how it can be done.


Thanks in advance
watsmyname

I'm trying to add/update an xml like so:
$xml->Header->Record->$curblk->$row = $value;
where $curblk and $row are obviously nodes.
Problem is that sometimes I need to add/update nodes of the same name so I tried this:
$xml->Header->Record->$curblk->$row[$multi] = $value; where $multi would represent the number (or instance or key?) of that node I wish to add/update.  Issue with that is, php thinks that I'm tring to set the node as an array, which is not possible!

So how do I dynamically add/update $row[0] , $row[1] , $row[2] base on the two variable, $row and $multi? ie:
$row = Jim Bob;
$multi = 0;
<author>Jim Bob</author>
$row = Tom Reed;
$multi = 1;
<author>Tom Reed</author>
You get:
<book>
  <author>Jim Bob</author>
  <author>Tom Reed</author>
</book>Of course there is muuuuch more to it than that, but that is about as simple as I can explain it...  Of course thank you for any help, i've been stuck on this for 3 days now! and my boss is not happy, especially since I'm a vary novice developer that took on this assignment...

I'm trying to delete the <identifier> node of some XML, using the following code; unsuccessfully.   Can someone help me identify where I'm going wrong? TIA

$newXML = "";
$xmlString = Fedora_API::callGetDatastreamContents($this->pid, 'MODS', true);
$doc = DOMDocument::loadXML($xmlString);
$xpath = new DOMXPath($doc);

$fieldNodeList = $xpath->query("/identifier");

foreach ($fieldNodeList as $node) {  
	$fieldNodeList->removeChild($node);
}
$newXML = $doc->SaveXML();  

Can someone please explain to me what's the importance of node order? Does certain nodes that appear first or last have impact on traversing time?

Any suggestions much appreciated!

How do I update an xml node?

Currently I have this:
$xml = simplexml_load_file($xmlfile);
$user = $xml->xpath('/root/users/user/name');
$usr = $user[0][0]->asXML();
$usr = $name;

I don't know if that I right or not, but I do know that if it is right, it isn't updating the xml file. Am I on the right track, or not? What can I do?

XML file:   <?xml version="1.0" ... >
<database xmlns:xsi="http://www.w3.org/20...hema-instance">
    <record>
        <id>1</id>
        <name></name>     </record>
    <record>         ...     </record>
</database>   I want to delete the record where <id> equals $_GET['id']. I tried many suggested implementations based on xml or simplexml, without result. Came across a very simple workaround (it should omit the record where id=$id), but can someone help me to taylor it to my xml scheme?   <?php
$file = "database.xml";

$id = $_GET['id'];
echo "DELETING: ".$id;
$xml = simplexml_load_file($file);

$str = "<?xml version=\"1.0\"?>
<database>";

foreach($xml->children() as $child){
if($child->getName() == "id") {
if($id == $child['name']) {
continue;
} else {
$str = $str.$child->asXML();
}
}
}
$str = $str."
</database>";
echo $str;

$xml->asXML("database_backup.xml");
$fh = fopen($file, 'w') or die("can't open file");
fwrite($fh, $str);
fclose($fh);
?>

Hi All,

I've been struggling to get the following code to work. I have an API feed that looks like this:

 

<Jobs>
        <Job>
            <ID>1805</ID>
            <Name>House Additions/Alterations </Name>
            <Description>House</Description>
            <Client>
                <ID>16178470</ID>
                <Name>client name 1</Name>
            </Client>
            <ClientOrderNumber></ClientOrderNumber>
            <State>In Construction</State>
            <StartDate>2018-03-26T00:00:00</StartDate>
            <DueDate>2020-03-31T00:00:00</DueDate>
            <Contact>
                <ID>10195532</ID>
                <Name>Clent Name1</Name>
            </Contact>
            <InternalID>25026686</InternalID>
            <Manager>
                <ID>610781</ID>
                <Name>Manager Name 1</Name>
            </Manager>
            <Partner>
                <ID>610781</ID>
                <Name>patner name</Name>
            </Partner>
            <Assigned>
                <Staff>
                    <ID>610781</ID>
                    <Name>Staff 1</Name>
                </Staff>
              .........
              

I'm trying to work out how to show all the job ID, Job Name, Client Name, Start Date etc that are specific to the assigned staff member by selecting a specific staff member. $Staff is populated by a dropdown earlier in the code.

here's my code so far:

if ($err) {
  echo "cURL Error #:" . $err;
} else {
        $xml=simplexml_load_string($response) or die("Error: Cannot create object"); 
    $jobs = $xml->xpath("Jobs/Job/Assigned/Staff[Name= '$Staff']");
    foreach($jobs as $item) {
    //foreach($xml->Jobs->Job as $item) {
        $item1 = $item->Client->Name;
        $job_no = "$item->ID";
        $job_name = "$item->Name";
        $job_client = "$item1";
        $job_start = "$item->StartDate";
        $job_due = "$item->DueDate";
        $job_status = "$item->State";
            
    echo "<tr><td>$job_no</td><td><a href='activecp/managejob.php?job_id=$job_no'>$job_name</a></td><td>$job_client</td><td>$job_status</td><td>$job_start</td><td>$job_due</td></tr>";
     } 
}

This currently shows the ID and name of the selected staff member but not the info i need. All of the data I want to show is before the Assigned/Staff . 

Any help would be much appreciated. 

Thanks in advance.

Hi,

I have a RSS feed cached as an XML file. I need to pull some info out of it so I can then print it to the page.

Currently I am using this code to extract the data:

$doc = new DOMDocument();
  $doc->load('inthenews.xml');
  $inthenews = array();
  foreach ($doc->getElementsByTagName('item') as $node) {
    $itemRSS = array ( 
      'title' => $node->getElementsByTagName('title')->item(0)->nodeValue,
      'link' => $node->getElementsByTagName('link')->item(0)->nodeValue,
      'desc' => $node->getElementsByTagName('description')->item(0)->nodeValue,
      );
    array_push($inthenews, $itemRSS);
  }

However, the Description node contains more than I want. I need to remove everything except for the image ( <img../> ) it contains.

Is there some way of running preg or similar on the nodeValue as it is extracted? Or an alternative to "getElementsByTagName" that allows searching for strings?

If not, does anyone have a suggestion for doing this? I tried running preg_replace on the array, but it doesn't seem to do anything?? An example of the Array created by my code above is shown below:


Code: [Select]
[0] => Array
        (
            [title] => BBC radio Cambridge 7.20am
            [link] => images/news/Matthew_Freeman_Radio_Cambridgeshire_21-10-10.mp3
            [desc] => <img alt="BBC-logo" src="http://www2.mrc-lmb.cam.ac.uk/images/news/BBC-logo.jpg" height="54" width="127" /><br/>BBC radio Cambridge 7.20am 21.10.10: Dr Matthew Freeman"<br/> 21 October 2010
        )


Thanks in advance for any advice 

Phil

Hi, I am new to xml parsing and I just want to know how to check whether a node has attributes:

Here is my xml file to use:
=================
Code: [Select]
<?xml version="1.0" encoding="ISO-8859-1"?>
<email>
<message>
<to>
<toFirstName>Tove</toFirstName>
<toLastName toType="common" style="swag">Smith</toLastName>
</to>
<from>
<fromFirstName>Jani</fromFirstName>
<fromLastName fromType="unique">Dravison</fromLastName>
</from>
<heading>Reminder</heading>
<body>
<prologue>Tis the night before Xmas...</prologue>
<paragraph1>Don't forget me this weekend!</paragraph1>
<paragraph2>Jump the gun!</paragraph2>
<epilogue>The end of the world.</epilogue>
</body>
</message>

<message>
<to>employees</to>
<from>CEO</from>
<heading>Power Lunch</heading>
<body>
<prologue></prologue>
<paragraph1>Year over year data</paragraph1>
<paragraph2>Downsizing</paragraph2>
<epilogue>The end.</epilogue>
</body>
</message>
</email>

Here the simple script that I cannot get to work:
==================================
Code: [Select]
<?php
$simpleXMLObj=simplexml_load_file("email.xml");

if($simpleXMLObj->to[0]->toLastName[0]->attributes()->getName)
print "YES: this node has attributes!";
else
        print "NO:";
?>

Please I really need help, it is simple I know but I am new to xml parsing and mixed up.

I would like to adding a node to a tree. I want it to be a balanced b-tree. The logic/algorithm i can think of is

Code: [Select]
<?php
function add_node($root, $node) // Where $root is the parent to which node should be added and $node is the node that is to be added.
{
     Traverse the tree level wise, level 1 being the lchild and rchild of $root and calculate the number of node in that level
     if(number of nodes in a level < 2[sup]$level[/sup])  // Since number of nodes a level can accommodate  = 2[sup]$level[/sup] 
     {
          Add node in that level where ever it gets an empty spot.
     }
}
?>

Tree table:-
Code: [Select]
CREATE TABLE IF NOT EXISTS `tree` (
  `parent` int(7) NOT NULL,
  `rchild` int(7) NOT NULL,
  `lchild` int(7) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
Is their any better logic to do so ?

How can I print the attributes of a child node?
I have been trying and looking and cant get it.
I need the attributes of subfield printed after datafield
so a line would look like
datafield plus attributes plus subfield attributes plus subfield

=906 __$a0$bcbc$corignew etc...

<?php
//child nodes http://www.w3schools.com/php/php_xml_dom.asp
//http://books.google.com/books?id=ygQRKDEsLecC&pg=PA196&lpg=PA196&dq=print+php+xml+child+node+attributes&source=bl&ots=TCAhH4kpCt&sig=yJUPXesIkRUrNXdNE9Yr5ul7Wdw&hl=en&ei=U51kTeKQKsL48AbN4MDTBg&sa=X&oi=book_result&ct=result&resnum=10&ved=0CF4Q6AEwCQ#v=onepage&q=print%20php%20xml%20child%20node%20attributes&f=false
//http://stackoverflow.com/questions/4598409/printing-content-of-a-xml-file-using-xml-dom

$doc = new DOMDocument();
$doc->preserveWhiteSpace = FALSE;

$doc->load( 'loc.xml' );
$root = $doc->documentElement;
$type = $root->nodeType;
//print $doc->nodeName."\n";
//print $root->nodeName."\n";
//print $doc->nodeValue."\n";
//print $root->nodeValue."\n";


$librecords = $doc->getElementsByTagName( "record" );

foreach( $librecords as $record ){

   $leader = $record->getElementsByTagName( "leader" );
   $controlfields = $record->getElementsByTagName( "controlfield" ); 
   $datafields = $record->getElementsByTagName( "datafield" ); 
   $subfields = $record->getElementsByTagName( "subfield" );

   $leader = $leader->item(0)->nodeValue;  
   echo '=LDR '.$leader.'<BR>';

   foreach( $controlfields as $controlfield ){
      $tag = $controlfield->getAttribute('tag');  
      $cf_value = $controlfield->firstChild->nodeValue;
      echo "=".$tag." ".$cf_value.'<BR>';  }

   foreach( $datafields as $datafield ){
      $tag = $datafield->getAttribute('tag');  
      $ind1 = $datafield->getAttribute('ind1'); 
      $ind2 = $datafield->getAttribute('ind2'); 
      if ($ind1 ==" ") {$ind1 = "_";}
      if ($ind2 ==" ") {$ind2 = "_";}
      echo "=".$tag." ".$ind1.$ind2; 

      //if($datafield->hasChildNodes()){echo 'This node has children!<br />';}
      foreach ($datafield->childNodes AS $item)  {  
      //  $arr = $item->attributes; 
        print $arr;
      print 'nodeName '.$item->nodeName . " = " . $item->nodeValue." | " ;} //. "<br />";  }
  
  //   foreach ($datafield->children() as $node) {
  //      $arr = $node->attributes();   // returns an array
  //      print ("code=".$arr["code"]);     // get the value of this attribute
 //       print ("  Company=".$node->subfield);
//        print ("<p><hr>");
//}
 //     foreach( $subfields as $subfield){
      
 //     foreach($subfield->attributes as $attr){

     // $attributes = $subfield->attributes;

     
  //      print $attr->nodeName;
    //    print $attr->nodeValue;
   //     //print $attributes->nodeName;
        //print $attributes->nodeValue;

   //    print $subfield->nodeName;
    //   print $subfield->nodeValue;

//}}
    
   // print $item->nodeValue  ;  
 //       print $item->attributes("code");
   //       $valueID = $item->getAttribute('code'); 
   //      print $item->nodeName->attributes("code");
//          echo $item->nodeValue.getAttribute("code");
      //      print $item->getAttribute('code')
//http://www.devshed.com/c/a/PHP/Accessing-Attributes-and-Cloning-Nodes-with-the-DOM-XML-Extension-in-PHP-5/1/
 
      echo '<BR>'; 
     
     }





   foreach( $subfields as $subfield ){
      $code = $subfield->getAttribute('code');  
      $sf_value = $subfield->firstChild->nodeValue;
      echo '$'.$code.$sf_value.'<BR>'; }

echo '<BR>';

}
?>

   

Code: [Select]
  <leader>01026ngm a22002773a 4500</leader>
  <controlfield tag="001">16429180</controlfield>
  <controlfield tag="005">20100823131409.0</controlfield>
  <controlfield tag="007">vffcjaho|</controlfield>
  <controlfield tag="008">100823s2010    xxu060            mleng  </controlfield>
  <datafield tag="906" ind1=" " ind2=" ">
    <subfield code="a">0</subfield>
    <subfield code="b">cbc</subfield>
    <subfield code="c">orignew</subfield>
    <subfield code="d">u</subfield>
    <subfield code="e">ncip</subfield>
    <subfield code="f">20</subfield>
    <subfield code="g">y-movingim</subfield>
  </datafield>
  <datafield tag="955" ind1=" " ind2=" ">
    <subfield code="b">qm12 2010-08-23</subfield>
  </datafield>

I am creating a football predictor game and have a table in the database to hod all my users i have written a query to pull all out the users that have made a prediction that day with their predictions made i have put this into an array so my array will hold all the user details 1 being their userId I have set the order by on the query to userId so I get all the same users predictions in 1 block. I now want to extract all the predictions for each user and put these into their own array but I don't know which users the array will hold, how many users their will be, or how many predictions each user would have made so i'm not sure how to create this array i'm quite new to php can anyone help me with this