Re: Resizing Pictures
| From: | Tom Reed | Date: | Tue, 20 Apr 2004 05:47:35 +0000 |
| Subject: | Re: Resizing Pictures | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-183921@lists.php.net to get a copy of this message | ||
This will resize JPG images:
function get_image_width($image)
{
$imgsize = getimagesize($image);
return $imgsize[0];
}
function get_image_height($image)
{
$imgsize = getimagesize($image);
return $imgsize[1];
}
function resize_image($originalimage, $dest_width, $save_path, $newfilename)
{
$file_ext = strstr($newfilename, '.');
$width = get_image_width($save_path.$originalimage);
$height = get_image_height($save_path.$originalimage);
// If the width is bigger than the destination width, reduce the image size.
if ($width > $dest_width)
{
$aspectratio = ($width-$dest_width)/$width;
$newwidth = ceil($dest_width);
$newheight = ceil($height-($height*$aspectratio));
if (strtoupper($file_ext) == ".JPG")
if (function_exists("imagejpeg"))
{
$src_img = imagecreatefromjpeg($save_path.$originalimage);
if (imageistruecolor($src_img))
$dst_img = imagecreatetruecolor($newwidth, $newheight);
else
{
echo $originalimage." is not a true color image.";
exit();
}
imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $newwidth,
$newheight, $width, $height);
imagejpeg($dst_img, $save_path.$newfilename, 80);
imagedestroy($src_img);
imagedestroy($dst_img);
}
}
// Must be the same width or less, just save it.
else
if (!copy($save_path.$originalimage, $save_path.$newfilename))
{
echo "unable to copy file";
exit();
}
return $newfilename;
}
"Ryan Schefke" <ryanschefke@triomfgroup.com> wrote in message
news:auto-000650834511@front3.chartermi.net...
>
>
> How do you resize pictures once they're in a certain directory? I have
the
> script to upload a picture, that's working fine. I just need some help
with
> resizing it. Can someone help?
>
>
>
> Thanks!
>
>