Hi, i was trying to create thumbnail using a tutorial on image galleries,
I am having problems creating thumbnail images using GD. The thumbnail is
created with the sizes prorerly, however the image is black.
I have posted a temporary php file i created to investigate the problem
below.
I suspect the problem is with the imagecopyresampled function.
I am using php version 4.3.4 with GD ver 2.0.x in windows XP for the test
machine
I appreciate any help
Thanks
PHP:
<?php
$submit = $_POST['submit'];
if(isset($submit))
{
$file = $_FILES['file'];
$filename = "any.jpg";
move_uploaded_file($file['tmp_name'], $filename);
$height = get_size($filename, "height");
$width = get_size($filename, "width");
$source_handle = ImageCreateFromJPEG($filename);
$destination_handle = ImageCreateTrueColor($width, $height);
ImageCopyResampled($destination_handle, $source_handle, 0, 0, 0, 0,
$width, $height, $size[0], $size[1]);
ImageJPEG($source_handle, './tb_' . $filename);
echo "Success!!"?><br><br><br><img src="./tb_any.jpg" /><?
exit();
}
function get_size($filename, $dimension)
{
global $images_dir;
$size = GetImageSize($filename);
// Wide Image
if($size[0] > $size[1])
{
$thumbnail_width = 100;
$thumbnail_height = (int)(100 * $size[1] / $size[0]);
}
// Tall Image
else
{
$thumbnail_width = (int)(100 * $size[0] / $size[1]);
$thumbnail_height = 100;
}
if($dimension == "width")
{
return $thumbnail_width;
}
else
{
return $thumbnail_height;
}
}
?>
<form action="<?=$PHP_SELF?>" name="frmAdd" method="post"
enctype="multipart/form-data" >
<p>Title:<br><input type="text" size="54" name="article_title" /></p>
<p>Description:<br><textarea name="article_text" rows="10"
cols="40"></textarea></p>
<p>File:<br><input name="file" type="file" size="54" /></p>
<p><input type="submit" name="submit" value="Submit" /></p></form>
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
