Search an XML file

<?php

$emp_file = "/occ/data/xml/directory-results.xml";
$emp=simplexml_load_file($emp_file);

$last = '';
$first = '';
$resLast = $emp->xpath("//person[contains(translate(last, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'),'".strtolower($last)."')]");
$resFirst = $emp->xpath("//person[contains(translate(first, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'),'".strtolower($first)."')]");
$resAll = array_merge($resLast,$resFirst);

foreach ($resLast as $p) {
        $x = (int)$p->pidm;
        $Lpidm[$x] = (int)$p->pidm;
        $lastName[$x] = $p->last;
        $firstName[$x] = $p->first;
}
foreach ($resFirst as $p) {
        $x = (int)$p->pidm;
        $Fpidm[$x] = (int)$p->pidm;
        $lastName[$x] = $p->last;
        $firstName[$x] = $p->first;
}
$pidm = array_intersect($Lpidm, $Fpidm);
foreach ($pidm as $i) {
        echo $lastName[$i].", ";
        echo $firstName[$i]."\n";
}
?>