image upload and resize question

[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.

[googlegroups@paul13.com]

Re: image upload and resize question

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:[color=blue]
> I have a "file upload form" that works OK, but I have been[/color]
unsuccessful[color=blue]
> 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[/color]
thumbnail.jpg[color=blue]
> ... all at the same time. Links to a working example would be
> appreciated. Thanks.[/color]

[Geoff Berrow]

Re: image upload and resize question

I noticed that Message-ID: <7cGdnVcyXcwmHJ TfRVn-vQ@comcast.com> from DH
contained the following:
[color=blue]
>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.[/color]

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



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

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


if (is_uploaded_fi le($_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"){
$createfunction ="imagecreatefr omgif";}
else{$createfun ction="imagecre atefromjpeg";}

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

//check if file already uploaded
//if (file_exists($t humbpath ."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_im g)/(imagesx($src_i mg)/$new_w);
$dst_img = imagecreatetrue color($new_w,$n ew_h);
imagecopyresamp led($dst_img, $src_img, 0, 0, 0, 0, $new_w, $new_h,
imagesx($src_im g), imagesy($src_im g));
imagejpeg($dst_ img, $thumbpath ."s_".
$_FILES['userfile']['name'], 100);

//create big image
if(imagesx($src _img)>450){
$new_w = 450;
$new_h = imagesy($src_im g)/(imagesx($src_i mg)/$new_w);
$dst_img = imagecreatetrue color($new_w,$n ew_h);
$res=imagecopyr esampled($dst_i mg, $src_img, 0, 0, 0, 0, $new_w,
$new_h, imagesx($src_im g), imagesy($src_im g));
imagejpeg($dst_ img, $path ."b_".
$_FILES['userfile']['name'], 50);
$notify = "<span class=\"indent1 0bold\">Main image resampled</span>";
}
else{
$res = copy($_FILES['userfile']['tmp_name'], $mainpath
.."b_".$_FILE S['userfile']['name']);
$notify = "<span class=\"indent1 0bold\">Main image not
resampled</span>";
}

if (!$res) { echo "<span class=\"indent1 0bold\">Upload
failed!</span><br>\n"; exit; } else { echo "<span
class=\"indent1 0bold\">Upload sucessful!</span><br><br>\n ";

}

$filename=$_FIL ES['userfile']['name'];
printf("<span class=\"indent1 0bold\">Main :
</span>%sb_%s<br> \n",$path,$file name);
printf("<span class=\"indent1 0bold\">Thumbna il :
</span>%ss_%s<br> \n",$thumbpath, $filename);
//echo "<span class=\"indent1 0bold\">Main File Name:
</span>".$_FILES['userfile']['name']."<br>\n";
echo "<span class=\"indent1 0bold\">Origina l File Size: </span>
".$_FILES['userfile']['size']." bytes<br>\n";
echo "<span class=\"indent1 0bold\">File Type:
</span>".$_FILES['userfile']['type']."<br>\n";
echo "$notify.<br>\n ";
} else { echo "<span class=\"indent1 0bold\">Please use a .jpg or a .gif file</span><br>\n"; exit; }

//printf("<img src=\"%s%s\">", $path,$filename );
//printf("<img src=\"%sb_%s\"a lt=\"%s\">",$pa th,$filename,$m ainurl_alt);
printf("<span class=\"indent1 0bold\">Image Thumbnail:
</span><br><br><s pan class=\"indent1 0bold\"><img
src=\"%ss_%s\"a lt=\"%s\"></span><br>",$thu mbpath,$filenam e,$thumburl_alt );
imagedestroy($s rc_img);
imagedestroy($d st_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/

[Geoff Berrow]

Re: image upload and resize question

I noticed that Message-ID: <30fj01tc9o4anl jstjhlnn8sr914b at8vu@4ax.com>
from Geoff Berrow contained the following:
[color=blue]
>I've got some code that needs tidying up, but you are welcome to have a
>look.[/color]

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/

[DH]

Re: image upload and resize question

Geoff Berrow wrote:[color=blue]
> I noticed that Message-ID: <7cGdnVcyXcwmHJ TfRVn-vQ@comcast.com> from DH
> contained the following:
>
>[color=green]
>>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 .[/color]
>
>
> I've got some code that needs tidying up, but you are welcome to have a
> look.
>
>
>
> $thumbpath = "images/thumb/";
> $mainpath="imag es/main/";
> $max_size = 1000000;
>
> if (!isset($_FILES['userfile'])) exit;
>
>
> if (is_uploaded_fi le($_FILES['userfile']['tmp_name'])) {
>
> if ($_FILES['userfile']['size']>$max_size)
> { echo "The file is too big<br>\n"; exit; }
>
> if($_FILES['userfile']['type']=="image/gif"){
> $createfunction ="imagecreatefr omgif";}
> else{$createfun ction="imagecre atefromjpeg";}
>
> if (($_FILES['userfile']['type']=="image/gif") ||
> ($_FILES['userfile']['type'])=="image/pjpeg" ||
> ($_FILES['userfile']['type']=="image/jpeg")) {
>
> //check if file already uploaded
> //if (file_exists($t humbpath ."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_im g)/(imagesx($src_i mg)/$new_w);
> $dst_img = imagecreatetrue color($new_w,$n ew_h);
> imagecopyresamp led($dst_img, $src_img, 0, 0, 0, 0, $new_w, $new_h,
> imagesx($src_im g), imagesy($src_im g));
> imagejpeg($dst_ img, $thumbpath ."s_".
> $_FILES['userfile']['name'], 100);
>
> //create big image
> if(imagesx($src _img)>450){
> $new_w = 450;
> $new_h = imagesy($src_im g)/(imagesx($src_i mg)/$new_w);
> $dst_img = imagecreatetrue color($new_w,$n ew_h);
> $res=imagecopyr esampled($dst_i mg, $src_img, 0, 0, 0, 0, $new_w,
> $new_h, imagesx($src_im g), imagesy($src_im g));
> imagejpeg($dst_ img, $path ."b_".
> $_FILES['userfile']['name'], 50);
> $notify = "<span class=\"indent1 0bold\">Main image resampled</span>";
> }
> else{
> $res = copy($_FILES['userfile']['tmp_name'], $mainpath
> .."b_".$_FILE S['userfile']['name']);
> $notify = "<span class=\"indent1 0bold\">Main image not
> resampled</span>";
> }
>
> if (!$res) { echo "<span class=\"indent1 0bold\">Upload
> failed!</span><br>\n"; exit; } else { echo "<span
> class=\"indent1 0bold\">Upload sucessful!</span><br><br>\n ";
>
> }
>
> $filename=$_FIL ES['userfile']['name'];
> printf("<span class=\"indent1 0bold\">Main :
> </span>%sb_%s<br> \n",$path,$file name);
> printf("<span class=\"indent1 0bold\">Thumbna il :
> </span>%ss_%s<br> \n",$thumbpath, $filename);
> //echo "<span class=\"indent1 0bold\">Main File Name:
> </span>".$_FILES['userfile']['name']."<br>\n";
> echo "<span class=\"indent1 0bold\">Origina l File Size: </span>
> ".$_FILES['userfile']['size']." bytes<br>\n";
> echo "<span class=\"indent1 0bold\">File Type:
> </span>".$_FILES['userfile']['type']."<br>\n";
> echo "$notify.<br>\n ";
> } else { echo "<span class=\"indent1 0bold\">Please use a .jpg or a .gif file</span><br>\n"; exit; }
>
> //printf("<img src=\"%s%s\">", $path,$filename );
> //printf("<img src=\"%sb_%s\"a lt=\"%s\">",$pa th,$filename,$m ainurl_alt);
> printf("<span class=\"indent1 0bold\">Image Thumbnail:
> </span><br><br><s pan class=\"indent1 0bold\"><img
> src=\"%ss_%s\"a lt=\"%s\"></span><br>",$thu mbpath,$filenam e,$thumburl_alt );
> imagedestroy($s rc_img);
> imagedestroy($d st_img);
> }
> //end of image upload
>[/color]


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_').