使用XPath和PHP存储XML文档时，标记信息不会像需要那样存储在数组中

So, I want to iterate through the XML by the attributes of and then print the tags from within the coordinating tag. This is the structure:

<emp salesid="1">
    <report>07-14-2015_DPLOH_SalesID_1.pdf</report>
    <report>07-17-2015_DPLOH_SalesID_1.pdf</report>
    <report>07-14-2015_DTE_SalesID_1.pdf</report>
    <report>07-14-2015_IDT_SalesID_1.pdf</report>
    <report>07-14-2015_Kratos_SalesID_1.pdf</report>
    <report>07-14-2015_Spark_SalesID_1.pdf</report>
</emp>

Here is the my code:

$xml = new SimpleXMLElement($xmlStr);

foreach($xml->xpath("//emp/report") as $node) {
    //For all found nodes retrieve its ID from parent <emp> and store in $arr
    $id = $node->xpath("../@salesid");
    $id = (int)$id[0];
    if(!isset($arr[$id])) {
        $arr[$id] = array();
    }

    //Then we iterate through all nodes and store <report> in $arr
    foreach($node as $report) {
        $arr[$id][] = (string)$report;
    }
}

echo "<pre>";
print_r($arr);
echo "</pre>";

However, this is what I get for output:

Array
(
    [1] => Array
        (
        )

    [10] => Array
        (
        )

... and it continues to iterate through all of the attributes of tags, but never fills the array with any information.

If anyone could help tell me what I'm missing, I would GREATLY appreciate it. I feel like I'm losing my mind over what seems like should be rather simple.

Thanks!

You're very close. The code isn't working because of the second for loop. The outer loop will iterate through all of the report elements. So, node is a report element. When you try to iterate through the children of report, there's nothing there.

Instead of the second (inner) loop, simply do this:

$arr[$id][] = (string)$node;

When I did, I got the following result:

<pre>
Array
(
    [1] => Array
        (
            [0] => 07-14-2015_DPLOH_SalesID_1.pdf
            [1] => 07-17-2015_DPLOH_SalesID_1.pdf
            [2] => 07-14-2015_DTE_SalesID_1.pdf
            [3] => 07-14-2015_IDT_SalesID_1.pdf
            [4] => 07-14-2015_Kratos_SalesID_1.pdf
            [5] => 07-14-2015_Spark_SalesID_1.pdf
        )
    )

I updated your script to work slightly differently:

$emp = new SimpleXMLElement($xmlStr);

$id  = intval($emp['salesid']);
$arr = array(
    $id         => array(),
);

$lst = $emp->xpath('/emp/report');

while (list(, $text) = each($lst))
{  
    $arr[$id][] = (string) $text;
}

echo "<pre>";
print_r($arr);
echo "</pre>";

Cheers