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php: parsing table structure with SimpleXML
原标题:

I m trying to read in an xml file that for some reason has been modeled in a table structure like so:

<tr id="1">
  <td name="Date">10/01/2009</td>
  <td name="PromoName">Sample Promo Name</td>
  <td name="PromoCode">Sample Promo Code</td>
  <td name="PromoLevel" />
</tr>

This is just one sample row, the file has multiple <tr> blocks and it s all surrounded by <table>.

How can I read in the values, with all of the lines being named <td> name?

最佳回答

You could use simpleXML with an XPath expression.

$xml = simplexml_load_file( myFile.xml );
$values = $xml->xpath( //td[@name] );
foreach($values as $v) {
    echo "Found $v<br />";
}

This would give you all the TD node values that have a name attribute, e.g.

Found 10/01/2009
Found Sample Promo Name
Found Sample Promo Code
Found <nothing cuz PromoLevel is empty>

Edit To get through all the Table Rows, you could do something like this:

$rows = $xml->xpath( //tr );
foreach($rows as $row) {
   echo $row[ id ];
   foreach($row->td as $td) {
      if($td[ name ]) {
          echo $td[ name ], : ,$td, <br/> ,PHP_EOL;
      }
   }
}

You might also want to have a look at this article.

Edit Fixed the XPath expression, as Josh suggested.

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