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Loop through xml elements and display in a table in a new row?

由 元气小坏坏 提交于 2020-01-03 06:39:05

问题


UPDATE:

How would I get this code to display in each row in a table. I have this table so far and I've tried putting this code before and inside the <td> but it won't put the above xml file onto a new line for each <cogxml>. Can you see where I am going wrong? Test 2.php is the php code that Parfait has in the answer.

<?php
   include_once('test2.php');
?>


    <html>

    <head>
        <title>CharGer and CoGui</title>
        <link rel="stylesheet" type="text/css" href="../XSLT/myStyle.css" />
    </head>

    <body>
        <div style="overflow-x:auto;">
            <?php
            include_once("../XSLT/upload4.php");
            ?>
            <div class="wrap">
              <table>
                    <tr>
                        <th width="5%">Concept Name</th>
                        <th width="5%">Relation Type</th>
                        <th width="44%">CoGui XML</th>
                        <th width="46%">CharGer XML</th>
                    </tr>
                        <tr>
                        <?php
                      for ($x=0; $x <=5; $x++){?>
                            <td>

                            </td>
                            <td>

                            </td>
                            <td>

<pre><code class="language-xml"><?php echo htmlspecialchars(file_get_contents($xmlfile), ENT_QUOTES); ?></code></pre>


                            </td>
                            <td>
                            </td>

                        </tr>
                        <?php 
                      }
                        ?>
                </table>
             </div>
     </div>
   </body>
</html>

This is what it looks like at the moment. It looks like this on each line but I only want each section of cogxml to appear in each row.


回答1:


As mentioned, consider an XSLT solution. Specifically, you will want an XSLT using the Muenchian Grouping on the ctype/@id value. PHP can process XSLT called externally in a separate file or embedded as a string. Below runs the former:

XSLT Script (save as .xsl or .xslt to be used below in PHP)

<xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output version="1.0" encoding="UTF-8" indent="yes" />
<xsl:strip-space elements="*"/>

<xsl:key name="idkey" match="ctype" use="@id" />

  <xsl:template match="/">
    <root>
      <xsl:apply-templates select="*"/>
    </root>
  </xsl:template>

  <xsl:template match="ctype[generate-id() = generate-id(key('idkey',@id)[1])]">
    <xsl:variable select="@id" name="id"/>
    <cogxml>
      <support>
        <xsl:attribute name="name"><xsl:value-of select="ancestor::support/@name"/></xsl:attribute>            
        <conceptTypes>                    
          <xsl:copy>
            <xsl:copy-of select="@*"/>          
            <xsl:copy-of select="translation"/>
          </xsl:copy>
          <xsl:copy-of select="ancestor::conceptTypes/order[@id1=$id]"/>        
        </conceptTypes>      
        <relationTypes>
            <xsl:copy-of select="ancestor::support/relationTypes/rtype[contains(@idSignature, $id)]"/>
         </relationTypes>
      </support>
    </cogxml>
  </xsl:template>

</xsl:transform>

PHP Script

// Load the XML source and XSLT file
$xml = new DOMDocument('1.0', 'UTF-8');
$xml->formatOutput = true;
$xml->preserveWhiteSpace = false;
$xml->load('Input.xml');

$xsl = new DOMDocument;
$xsl->load('XSLTScript.xsl');

// Configure transformer
$proc = new XSLTProcessor;
$proc->importStyleSheet($xsl);

// Transform XML source
$newXML = new DOMDocument;
$newXML = $proc->transformToXML($xml);
echo $newXML;

// Save output to file
$xmlfile = 'Output.xml';
file_put_contents($xmlfile, $newXML);

Transformed XML (separated by each cType)

<?xml version="1.0" encoding="UTF-8"?>
<root>
  <cogxml>
    <support name="vocabulary">
      <conceptTypes>
        <ctype id="http://www.lirmm.fr/cogui#ct_043ea910-5f86-4150-b0f1-1418acf4db39" label="Junior Employee" x="250" y="10">
          <translation descr="" label="Junior Employee" lang="en"/>
        </ctype>
        <order id1="http://www.lirmm.fr/cogui#ct_043ea910-5f86-4150-b0f1-1418acf4db39" id2="http://www.lirmm.fr/cogui#ct_d7a78641-722f-4609-8f5a-90affc111e00"/>
      </conceptTypes>
      <relationTypes/>
    </support>
  </cogxml>
  <cogxml>
    <support name="vocabulary">
      <conceptTypes>
        <ctype id="http://www.lirmm.fr/cogui#ct_d7a78641-722f-4609-8f5a-90affc111e00" label="Employee" x="130" y="60">
          <translation descr="" label="Employee" lang="en"/>
        </ctype>
        <order id1="http://www.lirmm.fr/cogui#ct_d7a78641-722f-4609-8f5a-90affc111e00" id2="http://www.lirmm.fr/cogui#_ct_a12bacc5-bc88-429e-a7b1-45e143591288"/>
      </conceptTypes>
      <relationTypes/>
    </support>
  </cogxml>
  <cogxml>
    <support name="vocabulary">
      <conceptTypes>
        <ctype id="http://www.lirmm.fr/cogui#ct_feeca670-2f1c-433e-9271-4cffeda1e929" label="Director" x="250" y="110">
          <translation descr="" label="Director" lang="en"/>
        </ctype>
        <order id1="http://www.lirmm.fr/cogui#ct_feeca670-2f1c-433e-9271-4cffeda1e929" id2="http://www.lirmm.fr/cogui#ct_d7a78641-722f-4609-8f5a-90affc111e00"/>
      </conceptTypes>
      <relationTypes/>
    </support>
  </cogxml>
  <cogxml>
    <support name="vocabulary">
      <conceptTypes>
        <ctype id="http://www.lirmm.fr/cogui#ct_710bed80-a33e-4a13-b916-15fbb3357e8d" label="Manager" x="250" y="60">
          <translation descr="" label="Manager" lang="en"/>
        </ctype>
        <order id1="http://www.lirmm.fr/cogui#ct_710bed80-a33e-4a13-b916-15fbb3357e8d" id2="http://www.lirmm.fr/cogui#ct_d7a78641-722f-4609-8f5a-90affc111e00"/>
      </conceptTypes>
      <relationTypes/>
    </support>
  </cogxml>
  <cogxml>
    <support name="vocabulary">
      <conceptTypes>
        <ctype id="http://www.lirmm.fr/cogui#ct_cd84c648-ef22-4854-8e8c-a6654c0386be" label="Senior Employee" x="255" y="190">
          <translation descr="" label="Senior Employee" lang="en"/>
        </ctype>
        <order id1="http://www.lirmm.fr/cogui#ct_cd84c648-ef22-4854-8e8c-a6654c0386be" id2="http://www.lirmm.fr/cogui#ct_d7a78641-722f-4609-8f5a-90affc111e00"/>
      </conceptTypes>
      <relationTypes/>
    </support>
  </cogxml>
  <cogxml>
    <support name="vocabulary">
      <conceptTypes>
        <ctype id="http://www.lirmm.fr/cogui#_ct_a12bacc5-bc88-429e-a7b1-45e143591288" label="Top" x="10" y="60">
          <translation descr="" label="Top" lang="en"/>
        </ctype>
      </conceptTypes>
      <relationTypes>
        <rtype id="http://www.lirmm.fr/cogui#_rt_c42a5ce6-2f20-491d-8c91-501ae178a36c" idSignature="http://www.lirmm.fr/cogui#_ct_a12bacc5-bc88-429e-a7b1-45e143591288 http://www.lirmm.fr/cogui#_ct_a12bacc5-bc88-429e-a7b1-45e143591288" label="Link" x="10.0" y="10.0">
          <translation descr="" label="Link" lang="en"/>
        </rtype>
        <rtype id="http://www.lirmm.fr/cogui#rt_af40394c-9e62-4e92-b05b-352de5db876f" idSignature="http://www.lirmm.fr/cogui#_ct_a12bacc5-bc88-429e-a7b1-45e143591288 http://www.lirmm.fr/cogui#_ct_a12bacc5-bc88-429e-a7b1-45e143591288" label="senior" x="70.0" y="10.0">
          <translation descr="" label="senior" lang="en"/>
        </rtype>
      </relationTypes>
    </support>
  </cogxml>
</root>

To render HTML table, you can extend the XSLT script above and keep exact PHP script but just save output as HTML: 'Output.html'. Recall XSLT transforms XML into multiple formats: XML, HTML, even text. Here <cogxml> will render in each row of table.

HTML Table:

<xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output version="1.0" encoding="UTF-8" indent="yes" />
<xsl:strip-space elements="*"/>

<xsl:key name="idkey" match="ctype" use="@id" />

  <xsl:template match="/">
     <html>

      <head>
        <title>CharGer and CoGui</title>
        <link rel="stylesheet" type="text/css" href="../XSLT/myStyle.css" />
      </head>

      <body>
        <div style="overflow-x:auto;">
          <div class="wrap">
              <table>
                    <tr>
                      <th width="5%">Concept Name</th>
                      <th width="5%">Relation Type</th>
                      <th width="44%">CoGui XML</th>
                      <th width="46%">CharGer XML</th>
                    </tr>
                      <xsl:apply-templates select="*"/>
              </table>
          </div>
        </div>
      </body>
     </html>

  </xsl:template>

  <xsl:template match="ctype[generate-id() = generate-id(key('idkey',@id)[1])]">
    <xsl:variable select="@id" name="id"/>
      <tr>
        <td>
        </td>
        <td>
        </td>
        <td>
          <pre>

          <cogxml>
            <support>
              <xsl:attribute name="name"><xsl:value-of select="ancestor::support/@name"/></xsl:attribute>            
              <conceptTypes>                    
                <xsl:copy>
                  <xsl:copy-of select="@*"/>          
                  <xsl:copy-of select="translation"/>
                </xsl:copy>
                <xsl:copy-of select="ancestor::conceptTypes/order[@id1=$id]"/>        
              </conceptTypes>      
              <relationTypes>
                  <xsl:copy-of select="ancestor::support/relationTypes/rtype[contains(@idSignature, $id)]"/>
               </relationTypes>
            </support>
          </cogxml>


          </pre>
        </td>
      </tr> 
  </xsl:template>

</xsl:transform>



回答2:


Instead of deleting the non-matches, build a new file for each <ctype>.

To accomplish this,
1. iterate over all <ctype> nodes
1. get the id-attribute and select all <order> and <rtype> nodes that match
2. copy the results to a new DOM.

Iterate over all <ctype> nodes, get the id:

foreach ($dom->getElementsByTagName("ctype") as $ctype) {
    $id = $ctype->getAttribute('id');
    // more code will go here...
}

select the matches, using xpath

Set up the xpath-expressions: 

/cogxml/support/conceptTypes/order[@id1='$id']

Note the condition is in [], the @ signals attribute. In this case, id1-attribute of the <order> node has to match $id:

$xpath = new DOMXPath($dom);
$orders = $xpath->query("/cogxml/support/conceptTypes/order[@id1='$id']");

Result is a DOMNodeList as $orders, there might be 0 or more matches. Same procedure matching the id-attribute of the <rtype>-nodes.

build a new DOM and copy the nodes from the source to it

$newdom = new DOMDocument('1.0', 'utf-8');
$newdom->loadXML("<cogxml><support><conceptTypes /><relationTypes /></support></cogxml>");

This is setting up the basic XML corpus. Now add the <ctype> and its matching nodes we selected - importNode() will do the job. Note that we need the parent <conceptTypes> in the new DOM to call appendChild:

$newnode = $newdom->importNode($ctype, true);
$newdom->getElementsByTagName("conceptTypes")->item(0)->appendChild($newnode);

There might be multiple matching orders, so we iterate:

foreach ($orders as $order) {
    $newnode = $newdom->importNode($order, true);
    $newdom->getElementsByTagName("conceptTypes")->item(0)->appendChild($newnode);
}

Copying $rtypes is following the same procedure.
Finally, save the new DOM to XML:

$newdom->saveXML("mynewfile.xml");

Putting it all together and streamlining:

$dom = new DOMDocument('1.0', 'utf-8');
$dom->loadXML($x); // assume source XML in $x

$newdom = new DOMDocument('1.0', 'utf-8');
$xpath = new DOMXPath($dom);

foreach ($dom->getElementsByTagName("ctype") as $ctype) {

    $newdom->loadXML("<cogxml><support><conceptTypes /><relationTypes /></support></cogxml>");

    $newnode = $newdom->importNode($ctype, true);
    $newdom->getElementsByTagName("conceptTypes")->item(0)->appendChild($newnode);

    $id = $ctype->getAttribute('id');

    foreach ($xpath->query("/cogxml/support/conceptTypes/order[@id1='$id']") as $order) {
        $newnode = $newdom->importNode($order, true);
        $newdom->getElementsByTagName("conceptTypes")->item(0)->appendChild($newnode);
    }    

    foreach ($xpath->query("/cogxml/support/relationTypes/rtype[@id='$id']") as $rtype) {
        $newnode = $newdom->importNode($rtype, true);
        $newdom->getElementsByTagName("relationTypes")->item(0)->appendChild($newnode);
    }    

    echo $newdom->saveXML(); // echo to screen 
}

see it in action: https://eval.in/527124



来源：https://stackoverflow.com/questions/35684886/loop-through-xml-elements-and-display-in-a-table-in-a-new-row

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php
xml
domdocument
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