Imagecrop without saving the image

Question

I have a bunch of product preview images, but they are not the same dimensions.

So i wonder, is it possible to crop an image on the go, without saving it?

These two links should show what i mean:

http://xn--nstvedhandel-6cb.dk/alpha_1/?side=vis_annonce&id=12

http://xn--nstvedhandel-6cb.dk/alpha_1/?side=vis_annonce&id=13

Answer 1

Yes it's possible here's how i do it:

//Your Image
$imgSrc = "image.jpg";
list($width, $height) = getimagesize($imgSrc);
$myImage = imagecreatefromjpeg($imgSrc);

// calculating the part of the image thumbnail
if ($width > $height)
{
    $y = 0;
    $x = ($width - $height) / 2;
    $smallestSide = $height;
 } 
 else
 {
    $x = 0;
    $y = ($height - $width) / 2;
    $smallestSide = $width;
 }

 // copying the part into thumbnail
 $thumbSize = 100;
 $thumb = imagecreatetruecolor($thumbSize, $thumbSize);
 imagecopyresampled($thumb, $myImage, 0, 0, $x, $y, $thumbSize, $thumbSize, $smallestSide, $smallestSide);

 //final output
 header('Content-type: image/jpeg');
 imagejpeg($thumb);

This is not a verry light operation, like the others i also reccomend you to save the thumbnail after creating it to your file system.

You might wanna check out PHP's GD library.