foreach checkpoint in Mysql and PHP

I have a form like that:

            <tr>
                <td class="ttd"><input type="checkbox" value="<?php echo htmlentities($kunde['ID']); ?>" name="chk[]"> </td>
                <td class="ttd"><?php echo htmlentities($kunde['ID']); ?> </td>
                <td class="ttd"><?php echo htmlentities($kunde['tre']); ?> </td>
                <td class="ttd"><?php echo htmlentities($kunde['zt']); ?> </td>
                <td class="ttd"><?php echo htmlentities($kunde['jh']); ?> </td>
                <td class="ttd"><?php echo htmlentities($kunde['nb']); ?> </td>
                <td class="ttd"><?php echo htmlentities($kunde['ds']); ?> </td>
                <td class="ttd"><?php echo htmlentities($kunde['yx']); ?> </td>
                <td class="ttd" style="width:200px;"><?php echo htmlentities($x); ?> </td>
            </tr>

and i want an output, that for each checkbox give me an ID, I write this Code:

$checked_array = $_POST['chk'];
        $count = count($checked_array);
        foreach($_POST['chk'] as $key => $kunde["ID"]){
            for ($i=1; $i <= $count; $i++){
                

But that gives me just first ID. Anyone can help me?

update

So, I need a xml file with every checkbox, if i write echo, that gives me every ID or somthing appended attribut, but when i want to have a xml file, that gives me just first ID. this is my code as xml file:

$kunde_set = find_all_kunde();
while($kunde = mysqli_fetch_assoc($kunde_set)){
    $res = mysqli_query($connection, 'SELECT COUNT(ID) AS id_count FROM company');
    $rows = mysqli_fetch_assoc($res); 
    $count = $row['id_count'];
    $result = mysqli_query($connection, 'SELECT SUM(Amount) AS Amount_sum FROM company'); 
    $row = mysqli_fetch_assoc($result); 
    $sum = $row['Amount_sum'];
    $Invoice_number = $kunde['Invoice_number'];
    $Company_name = $kunde['Company_name'];
    $Amount = $kunde['Amount'];
    $Iban = $kunde['Iban'];
    $tstamp = time();
    $time = date("Y-m-d H:i:s", $tstamp);
    $date = date("Y-m-07");
    if(isset($_POST['submit'])){
        $filename = "export_xml_".date("Y-m-d_H-i",time()).".xml";
        $xml = new DOMDocument;
        $xml->preserveWhiteSpace = FALSE;
        $Document = $xml->appendChild($xml->createElement('Document'));
        $Document_attribute = $xml->createAttribute('xmlns');
        $Document_attribute->value = "urn:iso:std:iso:20022:tech:xsd:pain.001.001.03";
        $Document -> appendChild($Document_attribute);
        $CstmrCdtTrfInitn = $xml->createElement('CstmrCdtTrfInitn');
        $Document->appendChild($CstmrCdtTrfInitn);
        $GrpHdr = $xml->createElement('GrpHdr');
        $CstmrCdtTrfInitn->appendChild($GrpHdr);
        $MsgId = $xml->createElement('MsgId', $tstamp);
        $GrpHdr -> appendChild($MsgId);
        $CreDtTm = $xml->createElement('CreDtTm', $time);
        $GrpHdr -> appendChild($CreDtTm);
        $NbOfTxs = $xml->createElement('NbOfTxs', $count);
        $GrpHdr -> appendChild($NbOfTxs);
        $CtrlSum = $xml->createElement('CtrlSum', $sum);
        $GrpHdr -> appendChild($CtrlSum);
        $Nm = $xml->createElement('Nm', 'Idependesk GmbH');
        $InitgPty = $xml->createElement('InitgPty');
        $InitgPty -> appendChild($Nm);
        $GrpHdr -> appendChild($InitgPty);
        $PmtInf = $xml->createElement('PmtInf');
        $CstmrCdtTrfInitn->appendChild($PmtInf);
        $PmtInfId = $xml->createElement('PmtInfId', $tstamp);
        $PmtInf->appendChild($PmtInfId);
        $PmtMtd = $xml->createElement('PmtMtd', 'TRF');
        $PmtInf->appendChild($PmtMtd);
        $BtchBookg = $xml->createElement('BtchBookg', false);
        $PmtInf->appendChild($BtchBookg);
        $NbOfTxs = $xml->createElement('NbOfTxs', $count );
        $PmtInf->appendChild($NbOfTxs);
        $CtrlSum = $xml->createElement('CtrlSum', $sum);
        $PmtInf->appendChild($CtrlSum);
        $Cd = $xml->createElement('Cd', 'SEPA');
        $SvcLvl = $xml->createElement('SvcLvl');
        $SvcLvl->appendChild($Cd);
        $PmtTpInf = $xml->createElement('PmtTpInf');
        $PmtTpInf -> appendChild($SvcLvl);
        $PmtInf->appendChild($PmtTpInf);
        $ReqdExctnDt = $xml->createElement('ReqdExctnDt', $date);
        $PmtInf->appendChild($ReqdExctnDt);
        $Nm = $xml->createElement('Nm', 'Idependesk GmbH');
        $Dbtr = $xml->createElement('Dbtr');
        $Dbtr -> appendChild($Nm);
        $PmtInf->appendChild($Dbtr);
        $IBAN = $xml->createElement('IBAN', 'DE23432423423423423442');
        $Id = $xml->createElement('Id');
        $Id -> appendChild($IBAN);
        $DbtrAcct = $xml->createElement('DbtrAcct');
        $DbtrAcct -> appendChild($Id);
        $PmtInf->appendChild($DbtrAcct);
        $BIC = $xml->createElement('BIC', 'gdgdfgdfgd');
        $FinInstnId = $xml->createElement('FinInstnId');
        $FinInstnId -> appendChild($BIC);
        $DbtrAgt = $xml->createElement('DbtrAgt');
        $DbtrAgt -> appendChild($FinInstnId);
        $PmtInf->appendChild($DbtrAgt);
        $checked_array = $_POST['chk'];
        $count = count($checked_array);
        foreach($_POST['chk'] as $key => $value){
            #for ($i=1; $i <= $count; $i++){
                if($_POST['chk'][$key]==$kunde["ID"]){
                    #echo $kunde['Company_name']."<br />";
                    #echo $kunde['Amount']."<br />";
                    $CdtTrfTxInf = $xml->createElement('CdtTrfTxInf');
                    $PmtInf->appendChild($CdtTrfTxInf);
                    $EndToEndId = $xml->createElement('EndToEndId', $Invoice_number);
                    $PmtId = $xml->createElement('PmtId');
                    $PmtId -> appendChild($EndToEndId);
                    $CdtTrfTxInf -> appendChild($PmtId);
                    $InstdAmt_attribute = $xml->createAttribute('Ccy');
                    $InstdAmt_attribute->value = "EUR";
                    $InstdAmt = $xml->createElement('InstdAmt', $Amount);
                    $InstdAmt -> appendChild($InstdAmt_attribute);
                    $Amt = $xml->createElement('Amt');
                    $Amt -> appendChild($InstdAmt);
                    $CdtTrfTxInf -> appendChild($Amt);
                    $BICC = $xml->createElement('BIC', 'BELA');
                    $FinInstnIdd = $xml->createElement('FinInstnId');
                    $FinInstnIdd -> appendChild($BICC);
                    $CdtrAgt = $xml->createElement('CdtrAgt');
                    $CdtrAgt -> appendChild($FinInstnIdd);
                    $CdtTrfTxInf -> appendChild($CdtrAgt);
                    $Nmm = $xml->createElement('Nm', $Company_name);
                    $Cdtr = $xml->createElement('Cdtr');
                    $Cdtr -> appendChild($Nmm);
                    $CdtTrfTxInf -> appendChild($Cdtr);
                    $IBANN = $xml->createElement('IBAN', $x);
                    $Idd = $xml->createElement('Id');
                    $Idd -> appendChild($IBANN);
                    $CdtrAcct = $xml->createElement('CdtrAcct');
                    $CdtTrfTxInf -> appendChild($Idd);
                    $Ustrd =$xml -> createElement('Ustrd', "independesk Gutschrift {$Invoice_number}");
                    $RmtInf = $xml->createElement('RmtInf');
                    $RmtInf -> appendChild($Ustrd);
                    $CdtTrfTxInf -> appendChild($RmtInf);
                }
            #}
            $xml->formatOutput = true;
            $xml->save('../includes/xml/'.$filename) or die('XML Create Error') ;
            redirect_to("manage_content.php");
        }
    }
}