[ben_johnson1991]

Hey,
I am trying to resize an image before it uploads to my server.
I have never tried this before, but i'm giving it a shot.

my current script is basically

PHP Code:

$photo1 =      $photo1 = $_FILES['photo1']['tmp_name'];



Then this to validate



if (!$_FILES['photo1']['tmp_name']) { 

        

                        $photo1Error = '* You Must Submit Atleast <strong>One Image</strong> <br />';

                        $errorStat1 = '1';

                        $photoStat1 = '0';



        } else {

            

            list($width,$height)=getimagesize($photo1);



                    $newwidth=268;

                    $newheight=($height/$width)*$newwidth;

                    $tmp=imagecreatetruecolor($newwidth,$newheight);

                                    

                    imagecopyresampled($tmp,$photo1,0,0,0,0,$newwidth,$newheight,

                     $width,$height);

                    

                    $photo1 = $_FILES['file']['tmp_name'];

            



            $maxfilesize = 524288; // 524288 bytes equals 0.5MB

            if($_FILES['photo1']['size'] > $maxfilesize ) { 



                        $photo1Error = '* <strong>Image1</strong> was too large (0.5MB max) <br />';

                        $errorStat1 = '1';

                        $photoStat1 = '0';

                        unlink($_FILES['photo1']['tmp_name']); 



            } else if (!preg_match("/\.(gif|jpg|jpeg|png)$/i", $_FILES['photo1']['name'] ) ) {



                        $photo1Error = '* <strong>Image1</strong> was not one of the accepted formats (.jpg/.jpeg/.png/.gif) <br />';

                        $errorStat = '1';

                        $photoStat1 = '0';

                        unlink($_FILES['photo1']['tmp_name']); 

            }

            $photoStat1 = '1';

        } 





and finally 



     if($photoStat1 == 1){

        $newname = "image01.jpg";

        $place_file = move_uploaded_file( $_FILES['photo1']['tmp_name'], "classifieds/$id/".$newname);

     } 

to upload.

When I submited this, i recieved te following error
Warning: imagecopyresampled(): supplied argument is not a valid Image resource in /home/bensboxc/public_html/volkslove/regclassified.php on line 143

line 143 is '''' $width,$height);''''



any suggestions where im going wrong, thanks!

[wirehopper]

This uses ImageMagick (http://www.imagemagick.org) on the command line to do the resize.

HTML Code:

<form enctype="multipart/form-data" method="post">
<br />
<label>Image file<input type="file" name="image" id="image" /></label>
<input type="submit" value="Go" />
<br /><br />
</form>

PHP Code:

if (isset($_FILES['image']))

{

$v=$_FILES['image'];

if ($v['tmp_name']!=='')

{

        $parse=pathinfo($v['name']);

        if (isset($parse['extension']))

        {

                $tmp_image='tmp/image.gif';

                `rm $tmp_image`;

                system ('convert '.escapeshellarg($v['tmp_name']).' -thumbnail 200 '.escapeshellarg($tmp_image));

        }

        else

        {

                echo 'No extension';

                exit();

        }

} 

Linux - not Windows.

[ben_johnson1991]

Originally Posted by wirehopper

This uses ImageMagick (http://www.imagemagick.org) on the command line to do the resize.

HTML Code:

<form enctype="multipart/form-data" method="post">
<br />
<label>Image file<input type="file" name="image" id="image" /></label>
<input type="submit" value="Go" />
<br /><br />
</form>

PHP Code:

if (isset($_FILES['image']))

{

$v=$_FILES['image'];

if ($v['tmp_name']!=='')

{

        $parse=pathinfo($v['name']);

        if (isset($parse['extension']))

        {

                $tmp_image='tmp/image.gif';

                `rm $tmp_image`;

                system ('convert '.escapeshellarg($v['tmp_name']).' -thumbnail 200 '.escapeshellarg($tmp_image));

        }

        else

        {

                echo 'No extension';

                exit();

        }

} 

Linux - not Windows.

Could you explain this a bit more, just so I can understand the functions that I need as I can't quite work out where it is the image dimensions are being changed, and how i would implement this into my current script
Cheers for getting back to me though!

[wirehopper]

PHP Code:

system ('convert '.escapeshellarg($v['tmp_name']).' -thumbnail 200 '.escapeshellarg($tmp_image)); 

convert is the command for ImageMagick

The first filename is the input file. In this case, it's the file, as uploaded to the server and present in the server's tmp directory.

-thumbnail 200 means resize the image as a thumbnail, 200px wide, preserve the attribute ratio

Second filename is the destination file.

The example may be more useful to you for the upload process of getting the file input and interpreting it. I never use PHP's image processing libraries, I think the command line is easier.