[borgo]

I recently started with image resizing using GD and I was wondering if image rotating is also possible.

[kickinhard007]

can you explain a little more about the rotation? do you want it to rotate at certain times or on certain dates?

do you want some images to rotate move than others? etc etc

[borgo]

This is not about banner rotation or anything similar. I'm talking about editing pictures, resizing, croping, rotating etc.

[kickinhard007]

i'm not that familiar with GD, i would recommend that you do a google search for 'GD rotating images' or something similar.

[borgo]

Allright, this is it...

PHP Code:

<?



    //**************************************

    // Name: Image rotation using GD extension

    // Description:A function with the intention of rotating a Jpeg image 90° Clockwise, Counterclockwise and 180°(Flip).

    // By: Karl Blessing

    //

    //

    // Inputs:Source file ( path to the source )

    //Destination ( path to the destination, can be same as source if you want to overwrite )

    //degrees (integer value of 90(counterclockwise), 270(clockwise) or 180)

    //

    // Returns:does not return a value, will save the destination, no indication if successful is returned.

    //

    //Assumes:When writing this I found various behaviors between images with greater x than y's and so forth. Thus is why all the condiotionals. The function has not been tested for images with same x and y dimensions, and will not likely work. 

    //IMPORTANT:

    //You must have PHP 4.3.* or above for this function to work, a PHP version lower will not work. I was using PHP 4.3.2 for Win32, with GD Extension version 2 ( bundled with PHP ).

    //

    //Side Effects:None

    //This code is copyrighted and has limited warranties.

    //Please see [url]http://www.Planet-Source-Code.com/xq/ASP/txtCodeId.1074/lngWId.8/qx/vb/scripts/ShowCode.htm[/url]

    //for details.

    //**************************************

    

    function rotatePix($sourcefile, $targetfile, $degrees)

    {

        $img_size = getImageSize($sourcefile);

        $x = $img_size[0];

        $y = $img_size[1];

        if ($x > $y)

        {

            $dst_x = 0;

            $dst_y = $x - $y;

            $newd = $x;

        }

        else

        {

            $dst_x = $y - $x;

            $dst_y = 0;

            $newd = $y;

        }

        $src_img = ImageCreateFromJPEG($sourcefile);

        $dst_img = ImageCreateTrueColor($newd,$newd);

        

        if ((($x > y) && ($degrees < 180)) || (($y > $x) && ($degrees > 180)))

            ImageCopyResampled($dst_img,$src_img,0,0,0,0,$x,$y,$x,$y);

        else

            ImageCopyResampled($dst_img,$src_img,$dst_x,$dst_y,0,0,$x,$y,$x,$y);

        

        $rotated_img = ImageRotate($dst_img, $degrees,0);

        

        if ($degrees != 180)

        {

            //90 CounterClockWise or Clockwise

            $final_img = ImageCreateTrueColor($y,$x);

            ImageCopyResampled($final_img,$rotated_img,0,0,0,0,$y,$x,$y,$x);

        }

        else

        {

            //180 Degrees

            $final_img = ImageCreateTrueColor($x,$y);

            ImageCopyResampled($final_img,$rotated_img,0,0,0,0,$x,$y,$x,$y);

        }

        ImageJPEG($final_img, $targetfile);    

    }



        

rotatePix("foto.jpg", "foto.jpg", "270");



?>