PHP + Upload + picture script

[jason.tadeo@gmail.com]

I was wondering if anyone does any uploading picture scripts or how to
do it where i could upload a picture and use php to change the picture
size to what i want it to be. Anyone know where i could learn how to do
this or have any script examples? i would really appreciate it alot.

thanks for you time

jason

[josh.23.french]

Re: PHP + Upload + picture script

For the uploading part, here's some basic code:
<?php
if(@$_POST['MAX_FILE_SIZE']){ // If it is actually uploading
something...
$uploadfile = $uploaddir . basename($_FILE S['userfile']['name']);
//SET YOUR OWN UPLOAD DIR (absolute)
if (move_uploaded_ file($_FILES['userfile']['tmp_name'], $uploadfile)){
echo "File was successfully uploaded!\n You can access the file at:
http://".ROOT_DOMAIN.$ uploaddir.basen ame($_FILES['userfile']['name'])."\n";
} else {
echo "Error! File was not uploaded!\n";
};
};
?>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>?admin=<?php echo
ADMIN_PAGE; ?>" method="POST" enctype="multip art/form-data">
<input type="hidden" name="MAX_FILE_ SIZE" value="300000" />
<input type="file" name="userfile" /><br />
<input type="submit" value="Upload" />
</form>

You can find a basic image resizing script @ php.net under GD2
functions -

<?php
function CreateThumb($fi le,$maxwdt,$max hgt, $dest) {
list($owdt,$ohg t,$otype)=@geti magesize($file) ;

switch($otype) {
case 1: $newimg=imagecr eatefromgif($fi le); break;
case 2: $newimg=imagecr eatefromjpeg($f ile); break;
case 3: $newimg=imagecr eatefrompng($fi le); break;
default: echo "Unkown filetype (file $file, typ $otype)"; return;
}

if($newimg) {
if($owdt>1500 || $ohgt>1200)
list($owdt, $ohgt) = Resample($newim g, $owdt, $ohgt,
1024,768,0);

Resample($newim g, $owdt, $ohgt, $maxwdt, $maxhgt);

if(!$dest) return $newimg;

if(!is_dir(dirn ame($dest)))
mkdir(dirname($ dest));

switch($otype) {
case 1: imagegif($newim g,dest); break;
case 2: imagejpeg($newi mg,$dest,90); break;
case 3: imagepng($newim g,$dest); break;
}

imagedestroy($n ewimg);

chmod($dest,064 4);
}
}

function Resample(&$img, $owdt, $ohgt, $maxwdt, $maxhgt, $quality=1) {
if(!$maxwdt) $divwdt=0;
else $divwdt=Max(1,$ owdt/$maxwdt);

if(!$maxhgt) $divhgt=0;
else $divhgt=Max(1,$ ohgt/$maxhgt);

if($divwdt>=$di vhgt) {
$newwdt=$maxwdt ;
$newhgt=round($ ohgt/$divwdt);
} else {
$newhgt=$maxhgt ;
$newwdt=round($ owdt/$divhgt);
}

$tn=imagecreate truecolor($neww dt,$newhgt);
if($quality)

imagecopyresamp led($tn,$img,0, 0,0,0,$newwdt,$ newhgt,$owdt,$o hgt);

else
imagecopyresize d($tn,$img,0,0, 0,0,$newwdt,$ne whgt,$owdt,$ohg t);

imagedestroy($i mg);

$img = $tn;

return array($newwdt, $newhgt);
}
?>

just use the function create thumb to set the dimensions and the
destination file

*There is a script that will work out the % size for you on php.net, if
you need %s*

On Oct 30, 5:19 pm, "jason.ta...@gm ail.com" <jason.ta...@gm ail.com>
wrote:

I was wondering if anyone does any uploading picture scripts or how to
do it where i could upload a picture and use php to change the picture
size to what i want it to be. Anyone know where i could learn how to do
this or have any script examples? i would really appreciate it alot.
>
thanks for you time
>
jason

[Shelly]

Re: PHP + Upload + picture script

<jason.tadeo@gm ail.comwrote in message
news:1162246760 .533931.252710@ m7g2000cwm.goog legroups.com...

>I was wondering if anyone does any uploading picture scripts or how to
do it where i could upload a picture and use php to change the picture
size to what i want it to be. Anyone know where i could learn how to do
this or have any script examples? i would really appreciate it alot.
>
thanks for you time
>
jason
>

I developed a little script that I used only for jpegs so far. I haven't
tested it with other image types. Here it is:

function thumbnail($img, $w_d, $h_d) {
// $img is the image
// $w_d is the desired width in pixels
// $h_d is the desired height in pixels
//
// function to get the width and height to display q thumbnail
// Pass in the image location, the deisred width and the desired height
// Ouput is an array of height and width to display that can be
// exploded with the list commant
list($w, $h, $type, $attr) = getimagesize($i mg);
$calc_width = $h_d * $w / $h;
$calc_height = $w_d * $h / $w;
if ($calc_width <= $w_d) {
$disp_width = $calc_width;
$disp_height = $h_d;
} else {
$disp_width = $w_d;
$disp_height = $calc_height;
}
return array($disp_wid th, $disp_height);
}


I call it with:

list($disp_widt h, $disp_height) = thumbnail($the_ picture_locatio n, 500,
500);

and in the html area I have:

<img src="the-picture-location" width="<?php echo $disp_height;?> "
height="<?php echo $disp_height;?> "
border="0" alt="something here" align="bottom" />

Hope that helps.

Shelly

[aussiebob]

Re: PHP + Upload + picture script

>
On Oct 30, 5:19 pm, "jason.ta...@gm ail.com" <jason.ta...@gm ail.com>
wrote:

I was wondering if anyone does any uploading picture scripts or how to
do it where i could upload a picture and use php to change the picture
size to what i want it to be. Anyone know where i could learn how to do
this or have any script examples? i would really appreciate it alot.

thanks for you time

jason

Take a look on the phpclasses.org site. You will need to register but
I've never had a problem from there.
There are some excellent and well documented class files that can be
used to handle image resize (amongst other things) and by reading over
the code you can learn how they work while solving a problem straight
away.
Hope that helps
b

[Kim André Akerø]

Re: PHP + Upload + picture script

jason.tadeo@gma il.com wrote:

I was wondering if anyone does any uploading picture scripts or how to
do it where i could upload a picture and use php to change the picture
size to what i want it to be. Anyone know where i could learn how to
do this or have any script examples? i would really appreciate it
alot.

Actually, I developed just that type of function for a member system
where members would be able to upload a photo of themselves.

Here's the code snippet along with usage:

http://dev.bd0.net/test/image_upload_convert.phps

The function will accept JPEG, GIF and PNG files as input and by
default output a JPEG file.

--
Kim André Akerø
- kimandre@NOSPAM betadome.com
(remove NOSPAM to contact me directly)

[Arjen]

Re: PHP + Upload + picture script

aussiebob schreef:

>On Oct 30, 5:19 pm, "jason.ta...@gm ail.com" <jason.ta...@gm ail.com>
>wrote:

>>I was wondering if anyone does any uploading picture scripts or how to
>>do it where i could upload a picture and use php to change the picture
>>size to what i want it to be. Anyone know where i could learn how to do
>>this or have any script examples? i would really appreciate it alot.
>>>
>>thanks for you time
>>>
>>jason

>
>
Take a look on the phpclasses.org site. You will need to register but
I've never had a problem from there.
There are some excellent and well documented class files that can be
used to handle image resize (amongst other things) and by reading over
the code you can learn how they work while solving a problem straight
away.
Hope that helps
b

I agree ... I just posted a modified script in alt.php that I downloaded
from phpclasses that exactly fits your needs