Ændring af data fra: D0 til fx: ok

Scriptet spiller 100%, men har dog brug for, at ændre D0 i linie

$data = $GLOBALS['data']['D0']['D1'];

til en text med små bogstaver fx: ok

Hvordan kan det værre, at et stort "OK" virker 100% i linie:

$data = $GLOBALS['data']['OK']['D1'];

- men, at et lille "ok" fejler i linie:

$data = $GLOBALS['data']['ok']['D1'];

og som i øvrigt giver følgende fejlmeddelse:

Warning: Invalid argument supplied for foreach() in /var/www/xxx/html/test/testxml.php on line 41

Warning: First argument to array_keys() should be an array in /var/www/xxx/html/test/testxml.php on line 50

Warning: Bad arguments to implode() in /var/www/xxx/html/test/testxml.php on line 50

Warning: Invalid argument supplied for foreach() in /var/www/xxx/html/test/testxml.php on line 51

##
<?php

$GLOBALS['data'] = array();
$GLOBALS['current'] =& $GLOBALS['data'];

function startTag($parser, $name, $attribs) {
    $GLOBALS['current'][$name]['parent'] =& $GLOBALS['current'];
    $GLOBALS['current'] =& $GLOBALS['current'][$name];
}

function endTag($handler, $name) {
    $temp =& $GLOBALS['current'];
    $GLOBALS['current'] =& $temp['parent'];
    unset($temp['parent']);
}

function data($handler, $data) {
    $data = trim($data);
    if(!empty($data)) {
        $GLOBALS['current'][] = $data;
    }
}

$parser = xml_parser_create('') or die('Failed to create parser');
xml_set_element_handler($parser, 'startTag', 'endTag') or die ("Failed to set element handler");
xml_set_character_data_handler($parser, 'data') or die ("Failed to set data handler");

$fp = fopen('http://www.dummydummy.dk/data.xml', 'r');
while ($xml = fread($fp, 4096))
  xml_parse($parser, $xml, feof($fp))
      or die(sprintf("XML error: %s at line %d",
          xml_error_string(xml_get_error_code($xml_parser)),
          xml_get_current_line_number($xml_parser)));

fclose($fp);

xml_parser_free($parser);

$data = $GLOBALS['data']['D0']['D1'];

foreach($data as $name => $value) {
    foreach($value as $index => $text) {
        $tempArr[$index][$name] = $text;
    }
}

$db = mysql_connect('xxx', 'yyy', 'zzz');
mysql_select_db('xxx', $db);

$dbfields = "D0, D1, " . implode(', ', array_keys($tempArr[0]));
foreach($tempArr as $value) {

    $dbdata = implode("', '", $value);
    $sql = "INSERT INTO table ($dbfields) VALUES('D0', 'D1', '$dbdata')";
    mysql_query($sql, $db);
}

mysql_close($db);

?>
##