Paragraphs, fonts and other

Various fonts
Times New Roman, 9pt, Red
Times New Roman, 10pt, Red, Pattern Yellow
Tahoma, 10pt, Blue
Verdana, 8pt, Green

Various paragraphs
Alignment: center
Indent Left: 10
BackColor: #99ccff

Alignment: right
Indent Left: 5
Indent Right: 10
BackColor: #ffcc99
Border: red

Using hyperlinks
Official phpRtf site.

Using tags
Bold text.ItalicUnderline text.	.Current date- . Bullet •

<b>Bold text.</b><i>Italic<u>Underline text.</u></i><tab>.Current date- <chdate>. Bullet <bullet>.<br>

PHP highlighting sample
//sample php code
$sum = $a + $b;
echo "The sum is - ".$sum." .";