Solved

Change height/width of image in upload

Posted on 2007-03-26
3
292 Views
Last Modified: 2008-02-01
I have this code that I use to upload an original image and then two smaller versions. It works fine.

CODE
-----------------
<?
if (!isset($_POST['action'])) {
?>
                  <form action="" method="POST" enctype="multipart/form-data">
                        <input type="hidden" name="MAX_FILE_SIZE" value="2500000">
                        Select an image: <input type="file" name="imgfile" class="button"><br>
                        <br>
                        <center><font size="2">
                              <br>
                              For best results, use the dimensions (Height = 167px, Width = 200px).<br>
                              <br>
                              Please note: Only "jpg" images are currently supported. Files ending in ".jpeg" must be renamed to ".jpg" in order to be uploaded.<br>
                              <br>
                        </font>
                        <br>
                        <input type="hidden" name="action" value="do_upload">
                        <input type="submit" value="Submit Image">
                  </form><br><br>

<?

$result = mysql_query("SELECT * FROM bandinfo WHERE userid = '$ud_id'");
$num = mysql_num_rows($result);
$i = 0;
$pic = mysql_result($result,$i,"pic");

if (!empty($pic)){
?>
<?      
} else {
?>
<?
}
?>

<?
} elseif ($_POST['action'] == "do_upload") {
      $name = $_FILES['imgfile']['name'];
      if ($_FILES['imgfile']['type'] != 'image/jpeg' and $_FILES['imgfile']['type'] != 'image/pjpeg') {

?>

<?
exit;
      }
     
      $uploaddir1 = "pics";
      $uploaddir2 = "pics";
      $uploaddir3 = "pics";
     
     
      $final_filename1 = $ud_id."_l.jpg";
      $final_filename2 = $ud_id."_m.jpg";
      $final_filename3 = $ud_id."_s.jpg";
     
      $imgfile = $_FILES['imgfile']['tmp_name'];
     
      if (is_uploaded_file($imgfile)) {
            $newfile = $uploaddir1 . "/" . $final_filename1;
            copy($imgfile, $newfile);
           
            resize_me ($imgfile, $uploaddir2, $final_filename2, "75");
            resize_me ($imgfile, $uploaddir3, $final_filename3, "50");
           
            $query = "UPDATE `bandinfo` SET `pic` = '$ud_id' WHERE `userid` = '$ud_id'";
            mysql_query($query) or die('Error, insert query failed');
           
      }
     
?>

<?
}
           
function resize_me ($img, $path, $name, $percent) {
      //image file path
      //the folder to save to
      //the name to use when saving
      //percent to resize
     
      $orig_image = $img;
     
      $image_stats = GetImageSize($orig_image);
      $imagewidth = $image_stats[0];
      $imageheight = $image_stats[1];
      $img_type = $image_stats[2];
      $new_w = $imagewidth * $percent;
      $new_w = round($new_w / 100);
      $ratio = ($imagewidth / $new_w);
      $new_h = round($imageheight / $ratio);

      if ($img_type=="2") {
            $src_img = imagecreatefromjpeg($orig_image);
            $dst_img = imagecreatetruecolor($new_w,$new_h);
            imagecopyresampled($dst_img,$src_img,0,0,0,0,$new_w,$new_h,imagesx($src_img),imagesy($src_img));
            imagejpeg($dst_img, "$path"."/$name");
            } elseif  ($img_type=="3") {
            $dst_img=imagecreatetruecolor($new_w,$new_h);
            $src_img=ImageCreateFrompng($orig_image);
            imagecopyresampled($dst_img,$src_img,0,0,0,0,$new_w,$new_h,ImageSX($src_img),ImageSY($src_img));
            Imagepng($dst_img, "$path"."/$name");
      }
}

?>

---------------


Is it possible to modify it so that I first resize the original image to Height = 167px, Width = 200px, save that file as the original and then create the smaller versions?
0
Comment
Question by:MDauphinais1
3 Comments
 
LVL 15

Accepted Solution

by:
babuno5 earned 500 total points
ID: 18798221
I think the following code should work as per your requirement

    if (is_uploaded_file($imgfile)) {
            $newfile = $uploaddir1 . "/" . $final_filename1;
//            copy($imgfile, $newfile);
            resize_me ($imgfile, $uploaddir1, $final_filename1, '',167,200);
            resize_me ($newfile, $uploaddir2, $final_filename2, "75");
            resize_me ($newfile, $uploaddir3, $final_filename3, "50");
           
            $query = "UPDATE `bandinfo` SET `pic` = '$ud_id' WHERE `userid` = '$ud_id'";
            mysql_query($query) or die('Error, insert query failed');
           
      }


function resize_me ($img, $path, $name, $percent,$height="",$width="") {
      //image file path
      //the folder to save to
      //the name to use when saving
      //percent to resize
     
      $orig_image = $img;
     
      $image_stats = GetImageSize($orig_image);
      $imagewidth = $image_stats[0];
      $imageheight = $image_stats[1];
      $img_type = $image_stats[2];
            if($width == "")
            {
                  $new_w = $imagewidth * $percent;
                  $new_w = round($new_w / 100);
            }
            else
                  $new_w      = $width;
      
            if($height == "")
            {
            $ratio = ($imagewidth / $new_w);
              $new_h = round($imageheight / $ratio);
            }
            else
                  $new_h = $height;

      if ($img_type=="2") {
            $src_img = imagecreatefromjpeg($orig_image);
            $dst_img = imagecreatetruecolor($new_w,$new_h);
            imagecopyresampled($dst_img,$src_img,0,0,0,0,$new_w,$new_h,imagesx($src_img),imagesy($src_img));
            imagejpeg($dst_img, "$path"."/$name");
            } elseif  ($img_type=="3") {
            $dst_img=imagecreatetruecolor($new_w,$new_h);
            $src_img=ImageCreateFrompng($orig_image);
            imagecopyresampled($dst_img,$src_img,0,0,0,0,$new_w,$new_h,ImageSX($src_img),ImageSY($src_img));
            Imagepng($dst_img, "$path"."/$name");
      }
}
0
 
LVL 6

Expert Comment

by:deresh
ID: 18798225
yes it is possible, but you will loose original aspect rato of image.

you just have to copy whole resize_me function to for example resize_me_fixed and replace $new_h with 176 and $new_w with 200. Then first call this new modified function and then call old one with 75 and 50 percent to make two smaller pictures.
0
 

Author Comment

by:MDauphinais1
ID: 18798629
That worked as posted. Thanks.
0

Featured Post

What Is Threat Intelligence?

Threat intelligence is often discussed, but rarely understood. Starting with a precise definition, along with clear business goals, is essential.

Join & Write a Comment

Generating table dynamically is the most common issue faced by php developers.... So it seems there is a need of an article that explains the basic concept of generating tables dynamically. It just requires a basic knowledge of html and little maths…
Password hashing is better than message digests or encryption, and you should be using it instead of message digests or encryption.  Find out why and how in this article, which supplements the original article on PHP Client Registration, Login, Logo…
Learn how to match and substitute tagged data using PHP regular expressions. Demonstrated on Windows 7, but also applies to other operating systems. Demonstrated technique applies to PHP (all versions) and Firefox, but very similar techniques will w…
The viewer will learn how to dynamically set the form action using jQuery.

747 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now