I've tried to use the PHP function getimagesize, but I was unable to extract the image width and height as an integer value.
How can I achieve this?
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6 Answers
Try like this:
list($width, $height) = getimagesize('path_to_image');
Make sure that:
- You specify the correct image path there
- The image has read access
- Chmod image dir to 755
Also try to prefix path with $_SERVER["DOCUMENT_ROOT"], this helps sometimes when you are not able to read files.
7 Comments
poke
777 on directory is not needed.
Sarfraz
@poke: are you really 100% sure?
poke
Yes. 777 means read, write and execute right for owner, group, and all. You need read and execute right to access a directory, but you don't need write right; and you also don't need that right for everybody. 755 should be fine for every access where you don't need to create files inside of the directory.
Lee Saxon
Interesting to me that you need execute rights on the directory but not the image itself (works with the image on 644).
VertigoRay
You need allow_url_fopen turned on to be able to use
getimagesize() on remote images. |
list($width, $height) = getimagesize($filename)
Or,
$data = getimagesize($filename);
$width = $data[0];
$height = $data[1];
Comments
getimagesize() returns an array containing the image properties.
list($width, $height) = getimagesize("path/to/image.jpg");
to just get the width and height or
list($width, $height, $type, $attr)
to get some more information.
Comments
Like this :
imageCreateFromPNG($var);
//I don't know where from you get your image, here it's in the png case
// and then :
list($width, $height) = getimagesize($image);
echo $width;
echo $height;
1 Comment
lopisan
Don't work:
getimagesize() expects parameter 1 to be string, resource given, function getimagesize expects filenamePHP's getimagesize() returns an array of data. The first two items in the array are the two items you're interested in: the width and height. To get these, you would simply request the first two indexes in the returned array:
var $imagedata = getimagesize("someimage.jpg");
print "Image width is: " . $imagedata[0];
print "Image height is: " . $imagedata[1];
For further information, see the documentation.
Comments
getimagesize('image.jpg')
function works only if allow_url_fopen is set to 1 or On inside php.ini file on the server,
if it is not enabled, one should use
ini_set('allow_url_fopen',1);
on top of the file where getimagesize() function is used.
