Here is a little tutorial of how to make dynamic forum signature using php.
Demo:
Display using this code
<img src=”http://fkn1337.com/demos/dynamic_browser_sig/browser.php” />
My sig here detects the viewer browser and displays specific image for it, and also shows percentage between 3 browser usage.
What You Need:
- PHP Hosting (few free ones will also work like ripway.com)
- GDI Image Library for PHP
- A Brain (Optional)
Files and what they do:
- browser.php - will contain main script and act as a image.
- count.php - will save the viewers browser count values.
- ie.jpg - this image will be used if viewer is using MS Internet Explorer.
- ff.jpg - this image will be used if viewer is using FireFox.
- op.jpg - this image will be used if viewer is using Opera Browser.
- other.jpg - this image will be used if viewer is using non of the above.
count.php
count.php to save/get the browser views count
$iecount= 1;
$ffcount= 3;
$opcount= 1;
You will have to CHMOD this file to 777 (writeable) so php can change it.
Download count.php
browser.php
initialize the count variables set 1 to avoid division by zero error
$iecount=1;
$ffcount=1;
$opcount=1;
include count.php to get the old count values
include(”count.php”);
get the user browser
$agent = $_SERVER["HTTP_USER_AGENT"];
set browser value to the browser found. ie if Internet Explorer, ff if firefox, op if Opera else other
$browser=”other”;
if ( strstr($agent, “MSIE”) ) $browser = “ie”;
elseif ( strstr($agent, “Firebird”) ) $browser = “other”;
elseif ( strstr($agent, “Safari”) ) $browser = “other”;
elseif ( strstr($agent, “Mozilla/5″) ) $browser = “ff”;
elseif ( strstr($agent, “Mozilla/6″) ) $browser = “other”;
elseif ( strstr($agent, “Mozilla/4″) ) $browser = “other”;
elseif ( strstr($agent, “Opera”) ) $browser = “op”;
add one to the count of browser detected (will be later used to set display position too)
$ie=0;
$ff=0;
$op=0;
if($browser==”ie”) $ie++;
else if($browser==”ff”) $ff++;
else if($browser==”op”) $op++;
make content of new count.php file with incremented browser count value
$File = ‘
$iecount= '.($iecount+$ie).';
$ffcount= '.($ffcount+$ff).';
$opcount= '.($opcount+$op).';
?>‘;
write the count.php file
if ($FP = fopen (”count.php”, “w”)){
fwrite ($FP, $File);
fclose ($FP);
}
add up to get percentage
$total=$iecount+ $ffcount + $opcount;
get percentage for all
$ieperc=($iecount/$total)*100;
$ffperc=($ffcount/$total)*100;
$opperc=($opcount/$total)*100;
get image for specific browser
$im = imagecreatefromjpeg($browser.”.jpg”);
make font color to be used to display percentage values
$gery = ImageColorAllocate ($im, 255, 204, 109);
display ie, ff, op count as string on image
ImageString($im, 3, 271+($ie*2), 8+$ie,round($ieperc,0).”%”,$gery);
ImageString($im, 3, 431, 8+$ff,round($ffperc,0).”%”,$gery);
ImageString($im, 3, 592, 8+$op,round($opperc,0).”%”,$gery);
make .php to act as .jpg
header(”Content-type: image/jpeg”);
show the picture content
Imagejpeg($im,”,300);
free resources clear $im in cache
ImageDestroy ($im);
remember your browser.php and code.php should always start with <?php and end with ?> and no spaces before or after, otherwise your image wont showup
e.g.
<?php
///Your code here
///and here
//and here
//till you are done
//now end .php file
?>
Download browser.php
Four Images:
ie.jpg will be shown when user is viewing using Internet Explorer
ff.jpg will be shown when user is viewing using FireFox
op.jpg will be shown when user is viewing using Opera
other.jpg will be shown when user is viewing using none of the above
Download Full Package Dynamic Forums Signature
Demo Again:
Display using this code
<img src=”http://fkn1337.com/demos/dynamic_browser_sig/browser.php” />
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