png2gif-in-ie6-v11
.htaccess
Code (php)
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RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} MSIE\ [0-6]
RewriteCond %{REQUEST_FILENAME} -f
RewriteRule ^(.*).png$ png2gif.php?url=$1.png
RewriteCond %{HTTP_USER_AGENT} MSIE\ [0-6]
RewriteCond %{REQUEST_FILENAME} -f
RewriteRule ^(.*).png$ png2gif.php?url=$1.png
png2gif.php
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<?php
/**
* Please do not delete these lines!
*
* @author Jonathan
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
* @version 1.1
*/
/**
* Configuration
*/
/**
* Root-path
* Usefull when this script is not in your root
*/
define('ROOT', './');
/**
* Cache-folder
* Please create an empty folder and CGMOD to 0777
*/
define('CACHE', ROOT . 'png2gif/');
/**
* Script
*/
define('URL', ROOT . $_GET['url']);
$hashUrl = md5(URL);
$createImage = true;
$cachedName = CACHE . $hashUrl . md5(filemtime(URL)) . md5_file(URL);
$cachedType = null;
if (file_exists($cachedName))
{
$createImage = false;
if (filesize($cachedName))
{
$cachedType = 'gif';
}
else
{
$cachedType = 'png';
$cachedName = URL;
}
}
else
{
$cachedFiles = scandir(CACHE);
foreach ($cachedFiles as $cachedFile)
{
if (substr($cachedFile, 0, 32) == $hashUrl)
{
unlink(CACHE . $cachedFile);
break;
}
}
}
if ($createImage)
{
$size = getimagesize(URL);
$width = $size[0];
$height = $size[1];
$source = imagecreatefrompng(URL);
$alpha = false;
for ($x = 0; $x < $width; $x++)
{
for ($y = 0; $y < $height; $y++)
{
$color = imagecolorsforindex($source, imagecolorat($source, $x, $y));
if ($color['alpha'])
{
$alpha = true;
break 2;
}
}
}
if ($alpha)
{
$image = imagecreatetruecolor($width, $height);
$background = imagecolorallocate($image, 255, 255, 255);
imagefill($image, 0, 0, $background);
imagecolortransparent($image, $background);
imagecopyresampled($image, $source, 0, 0, 0, 0, $width, $height, $width, $height);
imagegif($image, $cachedName);
$cachedType = 'gif';
}
else
{
file_put_contents($cachedName, null);
$cachedType = 'png';
$cachedName = URL;
}
}
header('Content-type: image/' . $cachedType);
readfile($cachedName);
exit;
[/code]
/**
* Please do not delete these lines!
*
* @author Jonathan
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
* @version 1.1
*/
/**
* Configuration
*/
/**
* Root-path
* Usefull when this script is not in your root
*/
define('ROOT', './');
/**
* Cache-folder
* Please create an empty folder and CGMOD to 0777
*/
define('CACHE', ROOT . 'png2gif/');
/**
* Script
*/
define('URL', ROOT . $_GET['url']);
$hashUrl = md5(URL);
$createImage = true;
$cachedName = CACHE . $hashUrl . md5(filemtime(URL)) . md5_file(URL);
$cachedType = null;
if (file_exists($cachedName))
{
$createImage = false;
if (filesize($cachedName))
{
$cachedType = 'gif';
}
else
{
$cachedType = 'png';
$cachedName = URL;
}
}
else
{
$cachedFiles = scandir(CACHE);
foreach ($cachedFiles as $cachedFile)
{
if (substr($cachedFile, 0, 32) == $hashUrl)
{
unlink(CACHE . $cachedFile);
break;
}
}
}
if ($createImage)
{
$size = getimagesize(URL);
$width = $size[0];
$height = $size[1];
$source = imagecreatefrompng(URL);
$alpha = false;
for ($x = 0; $x < $width; $x++)
{
for ($y = 0; $y < $height; $y++)
{
$color = imagecolorsforindex($source, imagecolorat($source, $x, $y));
if ($color['alpha'])
{
$alpha = true;
break 2;
}
}
}
if ($alpha)
{
$image = imagecreatetruecolor($width, $height);
$background = imagecolorallocate($image, 255, 255, 255);
imagefill($image, 0, 0, $background);
imagecolortransparent($image, $background);
imagecopyresampled($image, $source, 0, 0, 0, 0, $width, $height, $width, $height);
imagegif($image, $cachedName);
$cachedType = 'gif';
}
else
{
file_put_contents($cachedName, null);
$cachedType = 'png';
$cachedName = URL;
}
}
header('Content-type: image/' . $cachedType);
readfile($cachedName);
exit;
[/code]