dynamcially retrieve xml data - php

Question

I am working with simplexml to retrieve data.
The data I am having trouble with looks like this:
SimpleXMLElement Object
(
[listing_pics_array] => SimpleXMLElement Object
(
[pic0] => http://imagepath.com_1.jpg
[pic1] => http://imagepath.com_2.jpg
[pic2] => http://imagepath.com_3.jpg
[pic3] => http://imagepath.com_4.jpg
[pic4] => http://imagepath.com_5.jpg
[pic5] => http://imagepath.com_6.jpg
[pic6] => http://imagepath.com_7.jpg
)
)
I am able to retrieve the url like this:
(string)$listing->listing_pics_array->pic0[0]
I want to dynamically loop over the listing_pic_array because I have no idea how many pics will be returned.
I want to do something like this:
foreach ($listing->listing_pics_array as $key => $value) {
echo '<img src="'.$value .'" alt="" />';
}
but I am getting nothing returned.
Thanks.

Answer 1

Try casting the SimpleXMLElement into an Array. This one works fine for me:
$sXml = <<<XML
<?xml version='1.0'?>
<root>
<listing_pics_array>
<pic0>pic0 foo</pic0>
<pic1>pic1 bar</pic1>
</listing_pics_array>
</root>
XML;
$oXml = simplexml_load_string($sXml);
foreach ((array)$oXml->listing_pics_array as $sCurrentValue) {
echo $sCurrentValue . PHP_EOL;
}
Yielded
pic0 foo
pic1 bar
HTH