Thumbnail for any Image type

[itbeings]

What function can I use to create a thumbnail for any image like GIF PNG and JPEG? I know how I can for each but I need to know if it's possible for all type.
Thanks in advance.

[bokeh]

function resize_maintain_transparency($source, $destination = null, $w = 125, $h = 125, $quality = 100)
{
$details = @getimagesize($source) or die("I cannot open $source");
$type = preg_replace('@^.+(?<=/)(.+)$@', '$1', $details['mime']);
eval('$source = imagecreatefrom'.$type.'($source);');
if($details[0] < $details[1])
{
$w = round(($h / $details[1]) * $details[0]);
}
else
{
$h = round(($w / $details[0]) * $details[1]);
}
if(imageistruecolor($source))
{
$slate = @imagecreatetruecolor($w, $h) or die('Invalid thumbnail dimmensions');
imageAlphaBlending($slate, false);
imageSaveAlpha($slate, true);
}
else
{
$slate = @imagecreate($w, $h) or die('Invalid thumbnail dimmensions');
if(false !== ($trans = @imagecolorsforindex($source, imagecolortransparent($source))))
{
$trans = ImageColorAllocate($slate, $trans['red'], $trans['green'], $trans['blue']);
imagefilledrectangle($slate, 0, 0, $w - 1, $h - 1, $trans);
imagecolortransparent($slate, $trans);
}
}
imagecopyresampled($slate, $source, 0, 0, 0, 0, $w, $h, $details[0], $details[1]);
$destination or header('Content-Type: '.$details['mime']);
eval('@image'.$type.'($slate'.(($type=='jpeg')?',$destination,$quality':($destination?',$destination ':'')).');');
imagedestroy($source);
imagedestroy($slate);
$destination or die;
}

[itbeings]

Thanks Bokeh, it really works the way I want it too.
In a case where U save image as it name with extension i.e if a file is named SHIP.png and you save it as SHIP(without the png, which will make it just a file), the function did not work perhaps it does not recognizes the file type.

Anyway, thanks.

[itbeings]

I have a problem with this code. When I tested it as a single file it worked but on getting where am to use it, it does not work. All I could see was lots of

���x���x���9d6��� �IDATx�ݽy�e�}��9����z�j�����MqIQ�Hm�dY�W���3�"x<� 9��`$A6ǁ�vhQ�N� �آ,[�DJ��5����T׾׫��{�9����z���I����w�s��=�������=�m�C~s�~���a���,C �类���0�u�=Ӱ�v���������w9.�R�n����_�O���n�q�{-�Z��r�����5 [W�w�={��uyo�a;�A/}�u߉�y���IH𽔿K{�-���o�����i�����!�X޽^�`��^�0����N
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Any help?

[bokeh]

Post the code that is calling the function.

[itbeings]

define('Imag', 'http://localhost/Site/Images/');

//$pR['ImageName'] is the file name, like Ship.png
$avL = Imag.$pR['ImageName'];
thumbNail($avL, $destination = null, $w = 120, $h = 120, $quality = 100);

[bokeh]

thumbNail($avL, $destination = null, $w = 120, $h = 120, $quality = 100);
That's wrong; it should look like this: thumbNail($avL, null, 120, 120, 100);
But what are you doing? Are you trying to output multiple files. Or are you trying to save them?

[itbeings]

That's wrong; it should look like this: thumbNail($avL, null, 120, 120, 100);
But what are you doing? Are you trying to output multiple files. Or are you trying to save them?

It doesn't rally matters Bokeh but your are right. All the same, when I can it to what you wrote. I tested it outside my code and it worked but by calling the function in the middle of my code, all I could see is alot of what I pasted earlier.

[bokeh]

That means your code is outputing something to the browser before calling this function. Do you know you can't successful output text and images on the same request?

[itbeings]

So what do you think I can do to create the thumbnail? I have to resize alot of images to different sizes.

[itbeings]

???

[bokeh]

I have to resize alot of images to different sizes.You should be saving them to file, not outputing them.

[itbeings]

Okay. which mean $destination won't have to be null. When declaring the destination path, should it be relative or absolute?

Thanks.

[bokeh]

should it be relative or absolute?That's for you to decide.