How can I display a 2 dimensonal array?

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1

How can I display a 2 dimensonal array?

2

The question is kind of vague. It really depends on your data, what it represents.

Most likely you WANT to display it as a TABLE . with one key being column head the other rows.

For example, if you are using PHP:

<table ><?
// $twoDarray is your array
function renderTDs( $cells, $tag='td',$rhead=true,$row=false)  {
	$firstTD=true;
 	foreach ( $cells as  $cont){
 		if ($rhead && $firstTD){echo '<th>',$row,"</th>\
";}
		echo  "<$tag>",$cont,"</$tag>\
";
		$firstTD=false;
 	}
}

function renderTable( $twoDarray, $rhead=true,$chead=true)  {
 	if ($chead){
 	    echo '<thead>';
 	    if ($rhead){echo '<th></th>';}
 		$ths=array_keys($twoDarray);
 		$ths=array_keys($twoDarray[$ths[0]]);
		renderTDs($ths, $tag='th',false);
		echo "</thead>\
";

	}
	foreach ( $twoDarray as $row=>$cells){
		echo '<tr>';
		renderTDs($cells,'td',$rhead,$row);
 		echo "<tr>\
";
	
	 }
}
$twoDarray['row1']['col1']=1;
$twoDarray['row1']['col2']=1;
$twoDarray['row1']['col3']=1;
$twoDarray['row1']['col4']=1;
$twoDarray['row2']['col1']=1;
$twoDarray['row2']['col2']=1;
$twoDarray['row2']['col3']=1;
$twoDarray['row2']['col4']=1;
renderTable($twoDarray);
?>
</table>

(hastily put together as am on the phone with a client)
$twoDarray is YOUR array.
if you want a table with column and row heads : renderTable($twoDarray);
if you want a table with column heads : renderTable($twoDarray,false);
if you want a table with row heads, but no col head : renderTable($twoDarray,true,false);
if you want a table with no heads : renderTable($twoDarray,false,false);

hope that helps

3

As @dresden_phoenix; said, the question is vague and hard to answer precisely for that very reason. Being specific pays off, I can assure you.

Dresden has given you an example in PHP but… is this the language you need?