Resizing images using php

Question

I\'m using a neat little php script to resize my images to fit in a 300x300 pixel square, while keeping the aspect ratio. I got the script from here.

Here is the whole s

Answer 1

        function imageResize($filename, $dest, $ndest,$filetempname,$filename) {
        $userfile_name = (isset($filename) ? $filename : "");

        $mb_byte_2 = (1024 * 2 * 1000);            
        $ftmp = $filetempname;

        $oname = $filename;
        $fname = $dest;
        $sizes = getimagesize($ftmp);
        $width = $sizes[0];
        $height = $sizes[1];

        $extenssion = strstr($oname, ".");

        $prod_img = $fname;
        $prod_img_thumb =$ndest;
        move_uploaded_file($ftmp, $prod_img);
        $original_filesize = (filesize($prod_img) / 1024);
        $sizes = getimagesize($prod_img);

        $expected_max_width = 125;
        $expected_max_height = 100;
        $originalw = $sizes[0];
        $originalh = $sizes[1];

        if ($originalh < $expected_max_height) {
            if ($originalw < $expected_max_width) {
                $imgwidth = $originalw;
                $imgheight = $originalh;
            } else {
                $imgheight = ($expected_max_width * $originalh) / $originalw;
                $imgwidth = $expected_max_width;
            }
        } else {
            $new_height = $expected_max_height;
            $new_width = ($expected_max_height * $originalw) / $originalh;

            if ($new_width > $expected_max_width) {
                $new_height = ($expected_max_width * $expected_max_height) / $new_width;
                $new_width = $expected_max_width;
            }

            $imgwidth = $new_width;
            $imgheight = $new_height;
        }
        $new_h = $imgheight;
        $new_w = $imgwidth;
        $new_w_im = '125';
        $new_h_im = '100';
        $offsetwidth = $new_w_im - $new_w;
        $offsetw = $offsetwidth / 2;
        $offsetheight = $new_h_im - $new_h;
        $offseth = $offsetheight / 2;
        //  echo $extenssion;
        $dest = imagecreatetruecolor($new_w_im, $new_h_im);
        $bg = imagecolorallocate($dest, 255, 255, 255);
        imagefill($dest, 0, 0, $bg);

        if ($extenssion == '.jpg') {
            $src = imagecreatefromjpeg($prod_img)
                    or die('Problem In opening Source JPG Image');
        } elseif ($extenssion == '.jpeg') {
            $src = imagecreatefromjpeg($prod_img)
                    or die('Problem In opening Source JPEG Image');
        } elseif ($extenssion == '.gif') {
            $src = imagecreatefromgif($prod_img)
                    or die('Problem In opening Source GIF Image');
        } elseif ($extenssion == '.png') {
            $src = imagecreatefrompng($prod_img)
                    or die('Problem In opening Source PNG Image');
        } elseif ($extenssion == '.bmp') {
            //print_r($prod_img);
          //                $src = imagecreatefrombmp($prod_img)
         //                or die('Problem In opening Source BMP Image');
        }

        if (function_exists('imagecopyresampled')) {
            imagecopyresampled($dest, $src, $offsetw, $offseth, 0, 0, 
             $new_w, $new_h,   imagesx($src), imagesy($src))
                    or die('Problem In resizing');
        } else {
            Imagecopyresized($dest, $src, $offsetw, $offseth, 0, 0,  
            $new_w, $new_h, imagesx($src), imagesy($src))
                    or die('Problem In resizing');
        }
        imagejpeg($dest, $prod_img_thumb, 72)
                or die('Problem In saving');
        imagedestroy($dest);
        @ob_flush();
        $new_filesize = (filesize($prod_img) / 1024);
    }