How to add columns to an existing array

[Claus Mygind]

I have an array with one column in each row. I want to expand the array so each row has 12 columns. How can I do that?

from
array(val1, val2, val3,...)

to
array(array1(val1,val2,val3...,val12), array2(val1,val2,val3...,val12),...)

I want to preserve the value in the first column as the first value in each row of the expanded array.

Is there a php function that will expand the array so I can then subsequently fill in the blank values?

[Claus Mygind]

Never mind it seem to be pretty simple

        for($i = 0, $size = count($aDupInvoice); $i < $size; ++$i) {
 
 
            $thisLine =  $aDupInvoice[$i];
            $aDupInvoice[$i] = 
                array(
                    $aDupInvoice[$i],
                    $oCGI['chk'.$thisLine],
                    $oCGI['INVOICENUM'.$thisLine],
                    $oCGI['RPTNUM'.$thisLine],
                    $oCGI['DETAILCODE'.$thisLine],
                    $oCGI['DATE'.$thisLine],
                    $oCGI['QUANTITY'.$thisLine],
                    $oCGI['RATE'.$thisLine],
                    $oCGI['AMOUNT'.$thisLine],
                    $oCGI['DESCRIPTION'.$thisLine],
                    $oCGI['Engineer'],
                    $oCGI['chk'.$thisLine].$oCGI['INVOICENUM'.$thisLine].$oCGI['RPTNUM'.$thisLine]
 
            );
        }