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image upload and resize question

P: n/a
DH
I have a "file upload form" that works OK, but I have been unsuccessful
in my attempt to also resize the uploaded .JPG (if it is too wide),
over-writing the original .JPG, and then create and save a thumbnail.jpg
.... all at the same time. Links to a working example would be
appreciated. Thanks.
Jul 17 '05 #1
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4 Replies


P: n/a
could you show the html form, and the php code that deals with the file
to save it and tries to resize it?
DH wrote:
I have a "file upload form" that works OK, but I have been unsuccessful in my attempt to also resize the uploaded .JPG (if it is too wide),
over-writing the original .JPG, and then create and save a thumbnail.jpg ... all at the same time. Links to a working example would be
appreciated. Thanks.


Jul 17 '05 #2

P: n/a
I noticed that Message-ID: <7c********************@comcast.com> from DH
contained the following:
I have a "file upload form" that works OK, but I have been unsuccessful
in my attempt to also resize the uploaded .JPG (if it is too wide),
over-writing the original .JPG, and then create and save a thumbnail.jpg
... all at the same time. Links to a working example would be
appreciated.


I've got some code that needs tidying up, but you are welcome to have a
look.

$thumbpath = "images/thumb/";
$mainpath="images/main/";
$max_size = 1000000;

if (!isset($_FILES['userfile'])) exit;
if (is_uploaded_file($_FILES['userfile']['tmp_name'])) {

if ($_FILES['userfile']['size']>$max_size)
{ echo "The file is too big<br>\n"; exit; }

if($_FILES['userfile']['type']=="image/gif"){
$createfunction="imagecreatefromgif";}
else{$createfunction="imagecreatefromjpeg";}

if (($_FILES['userfile']['type']=="image/gif") ||
($_FILES['userfile']['type'])=="image/pjpeg" ||
($_FILES['userfile']['type']=="image/jpeg")) {

//check if file already uploaded
//if (file_exists($thumbpath ."s_". $_FILES['userfile']['name'])) { echo
"The file already exists<br>\n"; exit; }

//make a copy of original file
//$res = copy($_FILES['userfile']['tmp_name'], $path .
//$_FILES['userfile']['name']);

//create thumbnail image
$src_img = $createfunction($_FILES['userfile']['tmp_name']);
$new_w = 120;
$new_h = imagesy($src_img)/(imagesx($src_img)/$new_w);
$dst_img = imagecreatetruecolor($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, $thumbpath ."s_".
$_FILES['userfile']['name'], 100);

//create big image
if(imagesx($src_img)>450){
$new_w = 450;
$new_h = imagesy($src_img)/(imagesx($src_img)/$new_w);
$dst_img = imagecreatetruecolor($new_w,$new_h);
$res=imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $new_w,
$new_h, imagesx($src_img), imagesy($src_img));
imagejpeg($dst_img, $path ."b_".
$_FILES['userfile']['name'], 50);
$notify = "<span class=\"indent10bold\">Main image resampled</span>";
}
else{
$res = copy($_FILES['userfile']['tmp_name'], $mainpath
.."b_".$_FILES['userfile']['name']);
$notify = "<span class=\"indent10bold\">Main image not
resampled</span>";
}

if (!$res) { echo "<span class=\"indent10bold\">Upload
failed!</span><br>\n"; exit; } else { echo "<span
class=\"indent10bold\">Upload sucessful!</span><br><br>\n";

}

$filename=$_FILES['userfile']['name'];
printf("<span class=\"indent10bold\">Main :
</span>%sb_%s<br>\n",$path,$filename);
printf("<span class=\"indent10bold\">Thumbnail :
</span>%ss_%s<br>\n",$thumbpath,$filename);
//echo "<span class=\"indent10bold\">Main File Name:
</span>".$_FILES['userfile']['name']."<br>\n";
echo "<span class=\"indent10bold\">Original File Size: </span>
".$_FILES['userfile']['size']." bytes<br>\n";
echo "<span class=\"indent10bold\">File Type:
</span>".$_FILES['userfile']['type']."<br>\n";
echo "$notify.<br>\n";
} else { echo "<span class=\"indent10bold\">Please use a .jpg or a .gif file</span><br>\n"; exit; }

//printf("<img src=\"%s%s\">",$path,$filename);
//printf("<img src=\"%sb_%s\"alt=\"%s\">",$path,$filename,$mainur l_alt);
printf("<span class=\"indent10bold\">Image Thumbnail:
</span><br><br><span class=\"indent10bold\"><img
src=\"%ss_%s\"alt=\"%s\"></span><br>",$thumbpath,$filename,$thumburl_alt);
imagedestroy($src_img);
imagedestroy($dst_img);
}
//end of image upload

--
Geoff Berrow (put thecat out to email)
It's only Usenet, no one dies.
My opinions, not the committee's, mine.
Simple RFDs http://www.ckdog.co.uk/rfdmaker/
Jul 17 '05 #3

P: n/a
I noticed that Message-ID: <30********************************@4ax.com>
from Geoff Berrow contained the following:
I've got some code that needs tidying up, but you are welcome to have a
look.


For instance s/$path/$mainpath

--
Geoff Berrow (put thecat out to email)
It's only Usenet, no one dies.
My opinions, not the committee's, mine.
Simple RFDs http://www.ckdog.co.uk/rfdmaker/
Jul 17 '05 #4

P: n/a
DH
Geoff Berrow wrote:
I noticed that Message-ID: <7c********************@comcast.com> from DH
contained the following:

I have a "file upload form" that works OK, but I have been unsuccessful
in my attempt to also resize the uploaded .JPG (if it is too wide),
over-writing the original .JPG, and then create and save a thumbnail.jpg
... all at the same time. Links to a working example would be
appreciated.

I've got some code that needs tidying up, but you are welcome to have a
look.

$thumbpath = "images/thumb/";
$mainpath="images/main/";
$max_size = 1000000;

if (!isset($_FILES['userfile'])) exit;
if (is_uploaded_file($_FILES['userfile']['tmp_name'])) {

if ($_FILES['userfile']['size']>$max_size)
{ echo "The file is too big<br>\n"; exit; }

if($_FILES['userfile']['type']=="image/gif"){
$createfunction="imagecreatefromgif";}
else{$createfunction="imagecreatefromjpeg";}

if (($_FILES['userfile']['type']=="image/gif") ||
($_FILES['userfile']['type'])=="image/pjpeg" ||
($_FILES['userfile']['type']=="image/jpeg")) {

//check if file already uploaded
//if (file_exists($thumbpath ."s_". $_FILES['userfile']['name'])) { echo
"The file already exists<br>\n"; exit; }

//make a copy of original file
//$res = copy($_FILES['userfile']['tmp_name'], $path .
//$_FILES['userfile']['name']);

//create thumbnail image
$src_img = $createfunction($_FILES['userfile']['tmp_name']);
$new_w = 120;
$new_h = imagesy($src_img)/(imagesx($src_img)/$new_w);
$dst_img = imagecreatetruecolor($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, $thumbpath ."s_".
$_FILES['userfile']['name'], 100);

//create big image
if(imagesx($src_img)>450){
$new_w = 450;
$new_h = imagesy($src_img)/(imagesx($src_img)/$new_w);
$dst_img = imagecreatetruecolor($new_w,$new_h);
$res=imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $new_w,
$new_h, imagesx($src_img), imagesy($src_img));
imagejpeg($dst_img, $path ."b_".
$_FILES['userfile']['name'], 50);
$notify = "<span class=\"indent10bold\">Main image resampled</span>";
}
else{
$res = copy($_FILES['userfile']['tmp_name'], $mainpath
.."b_".$_FILES['userfile']['name']);
$notify = "<span class=\"indent10bold\">Main image not
resampled</span>";
}

if (!$res) { echo "<span class=\"indent10bold\">Upload
failed!</span><br>\n"; exit; } else { echo "<span
class=\"indent10bold\">Upload sucessful!</span><br><br>\n";

}

$filename=$_FILES['userfile']['name'];
printf("<span class=\"indent10bold\">Main :
</span>%sb_%s<br>\n",$path,$filename);
printf("<span class=\"indent10bold\">Thumbnail :
</span>%ss_%s<br>\n",$thumbpath,$filename);
//echo "<span class=\"indent10bold\">Main File Name:
</span>".$_FILES['userfile']['name']."<br>\n";
echo "<span class=\"indent10bold\">Original File Size: </span>
".$_FILES['userfile']['size']." bytes<br>\n";
echo "<span class=\"indent10bold\">File Type:
</span>".$_FILES['userfile']['type']."<br>\n";
echo "$notify.<br>\n";
} else { echo "<span class=\"indent10bold\">Please use a .jpg or a .gif file</span><br>\n"; exit; }

//printf("<img src=\"%s%s\">",$path,$filename);
//printf("<img src=\"%sb_%s\"alt=\"%s\">",$path,$filename,$mainur l_alt);
printf("<span class=\"indent10bold\">Image Thumbnail:
</span><br><br><span class=\"indent10bold\"><img
src=\"%ss_%s\"alt=\"%s\"></span><br>",$thumbpath,$filename,$thumburl_alt);
imagedestroy($src_img);
imagedestroy($dst_img);
}
//end of image upload

The code that I've come up with now, by combining an upload script from
http://www.phpfreaks.com/quickcode/code/272.php
along with Geoff Berrow's input is rather lengthy and is posted here:
http://phpvs.com/misc/imgupld.php

The script needs additional work, in terms of deleting the original
image after sucessfully creating a properly sized image and thumbnail.
Also exploding the filename on '.' and appending _new and _thumb
(instead of prepending 'new_' and 'thumb_').

Jul 17 '05 #5

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