Eğer doğru anladıysam;

$degisken = "<html>\n";
$degisken .= "<head>\n";
$degisken .= "...\n";
$degisken .= "</head>\n";
$degisken .= "<body>\n";
$degisken .= "...\n";
$degisken .= "...\n";
$degisken .= $sorgu['ad']."\n";
$degisken .= "...\n";
$degisken .= "...\n";
$degisken .= "</body>";
$degisken .= "</html>";

echo $degisken;