Plese offer opinions if the header line below is necessary as the first line of HTML code embedded in HTML. I have seen examples where is was used and not used, so am seeking guidelines on when it is necessary to include.
if (!isset($cookie)) {
header("Content type: text/html");
echo "
<head>
<title>Internet Consultants, Inc.</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="description" content="Internet Consultants">
</head>
etc.
TIA
