php - Get XML element attribute with simplexml -

i have xml file follows:

<?xml version="1.0" ?> <shop version="2.0" shop-name="xyz">  <category name="foo1">   <subcategory name="foobar1">      <product name="productname1" id="1">         <supplier name="xxx" logo="xxx.gif" />         <desc>desc</desc>      </product>      <product name="productname2" id="2">        ...      </product>   </subcategory>  </category> </shop> 

and attribute value of shop element - shop-name

i used simplexml in php:

<?php     $dataxml=simplexml_load_file("data.xml");     $a=$dataxml->shop[0]["shop-name"];     echo $a; ?> 

as result nothing. have idea wrong?

those attributes, need access them correctly attributes() method:

$data = simplexml_load_file( 'data.xml' ); $attributes = $data->attributes(); echo $attributes['shop-name']; 

or can access directly, since it's main attribute:

$data = simplexml_load_file( 'data.xml' ); echo $data['shop-name'];