On Thursday 23 August 2007 14:50, Al wrote:
> Suggest you find another script. That one is weird and not
> simple PHP code, which will do your task easily.
just my thoughts to
>
> Beauford wrote:
> > I downloaded this 'upload and resize image' script, and since I have no
> > idea what I am looking at as this is something I have never done, could
> > someone have a look and see what the problem might be. I've been
> > searching around but haven't come across anything that makes any sense
> > yet.
> >
> > When a picture needs to be resized I am getting the following error. If
> > it is the same size or under I don't get this error.
> >
> > Warning: unlink() [function.unlink]: No such file or directory in
> > /usr/local/apache/htdocs/website/upload.php on line 92
> >
> > The full code is below.
> >
> > Thanks
> >
> > ------------------------------------------------------------------
> >
> > <html>
> >
> > <head>
> > <title>web.blazonry : PHP : Upload and Resize an Image</title>
> >
> > <?php
> >
> > if ($_SERVER['REQUEST_METHOD'] == "POST")
> > {
> >
> > /* SUBMITTED INFORMATION - use what you need
> > * temporary filename (pointer): $imgfile
> > * original filename : $imgfile_name
> > * size of uploaded file : $imgfile_size
> > * mime-type of uploaded file : $imgfile_type
> > */
> >
> > /*== upload directory where the file will be stored
> > relative to where script is run ==*/
> >
> > $uploaddir = "images";
> >
> >
> > /*== get file extension (fn at bottom of script) ==*/
> > /*== checks to see if image file, if not do not allow upload ==*/
> > $pext = getFileExtension($imgfile_name);
> > $pext = strtolower($pext);
> > if (($pext != "jpg") && ($pext != "jpeg"))
> > {
> > print "<h1>ERROR</h1>Image Extension Unknown.<br>";
> > print "<p>Please upload only a JPEG image with the extension .jpg
> > or .jpeg ONLY<br><br>";
> > print "The file you uploaded had the following extension:
> > $pext</p>\n";
> >
> > /*== delete uploaded file ==*/
> > unlink($imgfile);
> > exit();
> > }
> >
> >
> > //-- RE-SIZING UPLOADED IMAGE
> >
> > /*== only resize if the image is larger than 250 x 200 ==*/
> > $imgsize = GetImageSize($imgfile);
> >
> > /*== check size 0=width, 1=height ==*/
> > if (($imgsize[0] > 250) || ($imgsize[1] > 200))
> > {
> > /*== temp image file -- use "tempnam()" to generate the temp
> > file name. This is done so if multiple people access the
> > script at once they won't ruin each other's temp file ==*/
> > $tmpimg = tempnam("/tmp", "MKUP");
> >
> > /*== RESIZE PROCESS
> > 1. decompress jpeg image to pnm file (a raw image type)
> > 2. scale pnm image
> > 3. compress pnm file to jpeg image
> > ==*/
> >
> > /*== Step 1: djpeg decompresses jpeg to pnm ==*/
> > system("djpeg $imgfile >$tmpimg");
> >
> >
> > /*== Steps 2&3: scale image using pnmscale and then
> > pipe into cjpeg to output jpeg file ==*/
> > system("pnmscale -xy 250 200 $tmpimg | cjpeg -smoo 10 -qual 50
> >
> >> $imgfile");
> >
> > /*== remove temp image ==*/
> > unlink($tmpimg);
> >
> > }
> >
> > /*== setup final file location and name ==*/
> > /*== change spaces to underscores in filename ==*/
> > $final_filename = str_replace(" ", "_", $imgfile_name);
> > $newfile = $uploaddir . "/$final_filename";
> >
> > /*== do extra security check to prevent malicious abuse==*/
> > if (is_uploaded_file($imgfile))
> > {
> >
> > /*== move file to proper directory ==*/
> > if (!copy($imgfile,"$newfile"))
> > {
> > /*== if an error occurs the file could not
> > be written, read or possibly does not exist ==*/
> > print "Error Uploading File.";
> > exit();
> > }
> > }
> >
> > /*== delete the temporary uploaded file ==*/
> > unlink($imgfile);
> >
> >
> > print("<img src=\"images\\$final_filename\">");
> >
> > /*== DO WHATEVER ELSE YOU WANT
> > SUCH AS INSERT DATA INTO A DATABASE ==*/
> >
> > }
> > ?>
> >
> >
> > </head>
> > <body bgcolor="#FFFFFF">
> >
> > <h2>Upload and Resize an Image</h2>
> >
> > <form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="POST"
> > enctype="multipart/form-data">
> > <input type="hidden" name="MAX_FILE_SIZE" value="50000">
> >
> > <p>Upload Image: <input type="file" name="imgfile"><br>
> > <font size="1">Click browse to upload a local file</font><br>
> > <br>
> > <input type="submit" value="Upload Image">
> > </form>
> >
> > </body>
> > </html>
> >
> > <?php
> > /*== FUNCTIONS ==*/
> >
> > function getFileExtension($str) {
> >
> > $i = strrpos($str,".");
> > if (!$i) { return ""; }
> >
> > $l = strlen($str) - $i;
> > $ext = substr($str,$i+1,$l);
> >
> > return $ext;
> >
> > }
> > ?>
--
---
Børge
http://www.arivene.net
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