Captcha font

[poep]

Hi,

 

First of all i hope someone can help me i do not know about php so if you can help me i apreciate it a lot

the below code is a captcha code i want to be able to set my own font how can i do this? and is it possible to turn this into a png image with transparancy background?

 

<?php
session_start();
//$text = rand(1000000,9999999); 
$text = rand(10000,99999);
$_SESSION["vercode"] = $text;

$height = 17;
$width = 60;
 
$image_p = imagecreate($width, $height);
$black = imagecolorallocate($image_p,243,247,250);
$white = imagecolorallocate($image_p, 0, 0, 0);
$font_size = 8;
 
imagestring($image_p, $font_size, 5, 0, $text, $white);
imagejpeg($image_p, null,100);

?>