Question

I’m trying to get some data from a HTML

$xdata = simplexml_import_dom($doc);
$datas = $xdata->xpath("//*[@class='proglist']");
$aData = array();
foreach($datas as $data)
{   

    $rightdatas = $data->xpath("*[@class='progright']");
    $rt = $rightdatas[0];
    print_r($rt);
    $content  = $rt->xpath("*[@class='progrighthead']");
    print_r($content  );
}

If I’m printing out the content of the $rt than the progrighthead class is there, but the $content variable is empty. Why?

Why do I receiving the same result for the following syntax?

$xdata = simplexml_import_dom($doc);
$datas = $xdata->xpath("//*[@class='proglist']");
$aData = array();
foreach($datas as $data)
{   

    $rightdatas = $data->xpath("*[@class='progright']");
    $rt = $rightdatas[0];
    print_r($rt);
    $content  = $rt->xpath("*[@class='progrighthead']");
}    

and

$datas    = $xdata->xpath("//*[@class='progrighthead']");

Answer 1

progrighthead is not a child of progright, but a descendant. Use

$rt->xpath(".//*[@class='progrighthead']");

Putting // at the beginning means searching from the root, not from the current element.