Comments on: Flash based alternative to mailto:

by: Richard Lee

Fri, 02 May 2008 04:30:11 +0000

Hi Simon, have u tried cutting and pasting the link you see in the source into your browser - does the image appear? Because it sounds like a paths issue to me

by: Simon Ferrari

Sun, 20 Apr 2008 17:05:16 +0000

Hi,
I was looking for something like this but I’m not familiar with scripts and the like and have used NetObjects Fusion to create my website.
I’ve created a file called nospam.php (which has got the code above starting with the line “if (!empty($_GET[’user’]) && !empty($_GET[’domain’]))….” and copied that to the same directly as my html pages.
I’ve then inserted the code :

in place of the mailto in my web page and changed the http:… bit to the location where I put the nospam.php file.
I was expecting to see the email address rendered as an image but I just get one of those square image placeholders however clicking on this does work and open outlook with right To address. Why is the image not looking right?

Simon

by: Cameron Manderson

Wed, 28 Feb 2007 11:43:52 +0000

Nice snippets!

by: Richard Lee

Wed, 28 Feb 2007 04:27:49 +0000

And if you wanted to have the email address appear simply render the text with PHP

if (!empty($_GET['user']) && !empty($_GET['domain'])) {

 

$string = trim($_GET['user']).'@'.trim($_GET['domain']);

$line = array("linespacing" =&gt; 0);

$fontsize = 12;

$fontfile = 'verdana.ttf';

$imgH = 18;

$marginX = 0;

$imgColorHex = '000000';

$txtColorHex = 'FFFFFF';

 

$box = imageftbbox($fontsize,0,$fontfile,$string,$line) or die("ERROR");

$tw= $box[4]-$box[0]; //image width

$marginY = $imgH - (($imgH - $fontsize) / 2);

$imgW = $tw + (2*$marginX);

$im = imagecreate($imgW, $imgH);

$int = hexdec($imgColorHex);

$arr = array("red" =&gt; 0xFF & ($int &gt;&gt; 0x10),

"green" =&gt; 0xFF & ($int &gt;&gt; 0x8),

"blue" =&gt; 0xFF & $int);

$black = imagecolorallocate($im, $arr["red"], $arr["green"], $arr["blue"]);

$int = hexdec($txtColorHex);

$arr = array("red" =&gt; 0xFF & ($int &gt;&gt; 0x10),

"green" =&gt; 0xFF & ($int &gt;&gt; 0x8),

"blue" =&gt; 0xFF & $int);

$white = imagecolorallocate($im, $arr["red"], $arr["green"], $arr["blue"]);

header("Content-type: image/png");

imagefttext($im, $fontsize, 0, $marginX, $marginY, $white, $fontfile, $string, array());

imagepng($im);

} else {

echo "ERROR!";

}

?>

And here's an example with the addition of our js function above:

<a href="javascript:mailit('joebloggs', 'gmail.com')" rel="nofollow"><img src="http://www.melbournechapter.net/wordpress/nospam.php?user=joebloggs&domain=google.com" /></a>

by: Richard Lee

Wed, 28 Feb 2007 02:47:12 +0000

Yep, here's my simple javascript alternative - I believe the spam bots target "mailto" in the source and any formed email addresses:



<script language="javascript">

 

function mailit(user, domain) {

  window.location.href="mailto:"+user+"@"+domain;

}

 

</script>

 

<body>

<a href="javascript:mailit('joebloggs', 'gmail.com')" rel="nofollow">Email</a>

</body>

by: Cameron Manderson

Sat, 24 Feb 2007 23:41:04 +0000

It isn’t a bad concept, I like it.. Taking the precaution of using javascript at a minimum would be a start though, maybe a link to how to do that if people don’t want to have flash running on their site, or haven’t purchased flash. Alternatively, maybe we could link to a pre-built SWF that allows users to also specify the CSS and maybe have a JS that can resize itself as an embedded object so that it doesn’t always be 200width (or have to guess what is big enough in the case that it is dynamic).