foreach loop stops after first iteration - php

Question

Trying to pull an id from an xml file, pass it into an api query, and load the results into a dom document. Thing is my foreach loop is only returning the first iteration, then seems to stop.
Why isn't it going back to fetch the next PROGRAM_ID?
//load results of first api call into simplexml - print_r here gives me a big array with all the expected rows in it
$progsitecontent = simplexml_load_file($progsiteapi);
//set which nodes to step through to reach required information
$totalprogsitecontent = $progsitecontent->matrix->rows->row;
//for each instance of a program id in this simplexml file:
foreach($totalprogsitecontent->PROGRAM_ID as $progid)
{
//...substitute the program id into the api call
$programdetails = $progdetailsapi_start.$progid.$progdetailsapi_end;
$complete_program_details = simplexml_load_file($programdetails);
//now for each instance of a programs info, load into a DOM document and carry out the below actions - from here down already works in another script so im sure the problem has to be above this point
$prog_info = $complete_program_details->matrix->rows->row;
//create the top line container tag
$row = $doc->createElement ("programInformation");
//create the container tag
$progID = $doc->createElement("programId");
//fill it with the information you want
$progID->appendChild ( $doc->createTextNode ( $prog_info->PROGRAM_ID ) );
//attach this information to the row
$row->appendChild($progID);
//repeat for each element you want to include
$progName = $doc->createElement("programName");
$progName->appendChild ( $doc->createTextNode ( $prog_info->PROGRAM_NAME ) );
$row->appendChild($progName);
$progURLs = $doc->createElement("programUrls");
$progURLs->appendChild ( $doc->createTextNode ( $prog_info->PROGRAM_URLS ) );
$row->appendChild($progURLs);
$progLogo = $doc->createElement("programLogo");
$progLogo->appendChild ( $doc->createTextNode ( $prog_info->MERCHANT_LOGO ) );
$row->appendChild($progLogo);
$r->appendChild ($row);
}
echo $doc->saveXML();
Feel free to comment on how any of this has been written. I'm still at the stage of "bodge-it-and-see" :)

Answer 1

Can't say much without seeing the full result of $totalprogsitecontent, but I think it should look something like this:
foreach($totalprogsitecontent as $progid)
{
...
}
Since $totalprogsitecontent->PROGRAM_ID is already a single value - so you're iterating over this element instead of the array.
Also, your $progid is lowercase in the for loop but you refer to $progID -- PHP is case sensitive.
After looking at your XML code here's what it should look like.
foreach($progsitecontent->matrix->rows->row as $row){
$progid = $row['PROGRAM_ID'];
$affid = $row['AFFILIATE_ID'];
}