How do I find the information about an image, e.g. its dimension, whether
it's jpg, tiff, bmp, gif, etc using the
native PHP function? I know that we can do it by using the imagemagick, but
perhaps some webhosting site does not have that installed. Thanks 3 3928
Continue ...
Once we determine the type of the image, it's size, then I'd like to
resize(proporti onately), then convert them to, say, a jpg file. And, then
display them. Thanks
"Ruby Tuesday" <ru*********@ya hoo.com> wrote in message
news:c4******** *****@ID-205437.news.uni-berlin.de... How do I find the information about an image, e.g. its dimension, whether it's jpg, tiff, bmp, gif, etc using the native PHP function? I know that we can do it by using the imagemagick,
but perhaps some webhosting site does not have that installed. Thanks
"Ruby Tuesday" <ru*********@ya hoo.com> wrote in message
news:c4******** *****@ID-205437.news.uni-berlin.de... How do I find the information about an image, e.g. its dimension, whether it's jpg, tiff, bmp, gif, etc using the native PHP function? I know that we can do it by using the imagemagick,
but perhaps some webhosting site does not have that installed. Thanks
You might start with the manual: http://us2.php.net/manual/en/ref.image.php
Here's a script you can tinker with to get started:
<?PHP
// Capture GET parameters
$source_file = $_GET['image'];
$new_width = $_GET['width'];
$new_height = $_GET['height'];
// Open source image file and get image dimensions
$old_image = imagecreatefrom jpeg($source_fi le);
$old_width = imagesx($old_im age);
$old_height = imagesy($old_im age);
// Create blank image
$new_image = imagecreatetrue color($new_widt h,$new_height);
// Copy and resize old image into new image resource and then return to
browser
imagecopyresize d($new_image,$o ld_image,0,0,0, 0,$new_width,$n ew_height,$old_ w
idth,$old_heigh t);
header('Content-type: image/jpeg');
imagejpeg($new_ image);
?>
Called with:
<img src="imagethumb .php?image=test .jpg&width=100& height=75" ... />
Steve
--
Steven C. Gallafent - The Computer Guy st***@compguy.c om - http://www.compguy.com/
Have you tried http://www.pairusers.com/? I did. It's nifty!
The getimagesize() function will determine the size of any GIF, JPG, PNG,
SWF, SWC, PSD, TIFF, BMP, IFF, JP2, JPX, JB2, JPC, XBM, or WBMP image file
and return the dimensions along with the file type and a height/width text
string to be used inside a normal HTML IMG tag. http://ca.php.net/function.getimagesize
Savut
"Ruby Tuesday" <ru*********@ya hoo.com> wrote in message
news:c4******** *****@ID-205437.news.uni-berlin.de... How do I find the information about an image, e.g. its dimension, whether it's jpg, tiff, bmp, gif, etc using the native PHP function? I know that we can do it by using the imagemagick, but perhaps some webhosting site does not have that installed. Thanks
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