Re: note 62244 rejected and deleted from function.imagecreatefromstring by notes editor nlopess

This was not a bug with PHP but rather with the corrup JPEGS produced by the phone. This entry would help a lot of people trying to use this phone's camera produced images with PHP on mobile blogging web sites. You are receiving this email because your note posted > to the online PHP manual has been removed by one of the editors. > > Read the following paragraphs carefully, because they contain > pointers to resources better suited for requesting support or > reporting bugs, none of which are to be included in manual notes > because there are mechanisms and groups in place to deal with > those issues. > > The user contributed notes are not an appropriate place to > ask questions, report bugs or suggest new features; please > use the resources listed on <http://php.net/support> > for those purposes. This was clearly stated in the page > you used to submit your note, please carefully re-read > those instructions before submitting future contributions. > > Bug submissions and feature requests should be entered at > <http://bugs.php.net/>. For documentation errors use the > bug system, and classify the bug as "Documentation problem". > Support and ways to find answers to your questions can be found > at <http://php.net/support>. > > Your note has been removed from the online manual. > > ----- Copy of your note below ----- > > I run a blogging site at http://www.elmwoodstrip.org where > people are > posting with all kinds of phones. I know a lot of people have been having > trouble using images from the Sprint PPC6700 with GD. The jpeg library > always thows an error about 16 bytes of extraneous data. I decided to > poke around in a hex editor and found those extraneous bytes occur right > at the end of the exif data and consist of the following hex string > \x00\x10\x4A\x46\x49\x46\x00\x01\x01\x00\x00\x01\x00\x01\x00\x00 > > By removing this extraneous data, images can easily be manipulated by GD > and the EXIF extension as a normal images. This also removes any problems > using the images with GIMP which must rely on the same jpeg libraries. > > Here is a function that will check to see if an image is from the PPC6700 > and then remove the extraneous data for you. The result can successully > be used with imagecreatefromstring > > function checkFixPPC6700($orig){ > //get the file contents > $data = file_get_contents($orig); > //if its a PPC 6700 image cut out the extraneous 16 bits > if(strstr($data, "\x41\x70\x61\x63\x68\x65\x00\x48")){ > $bad_data = > "\x00\x10\x4A\x46\x49\x46\x00\x01\x01\x00\x00\x01\x00\x01\x00\x00"; > return substr_replace($data, "", strpos($data, $bad_data), > strlen($bad_data)); > } else { > //if not from a PPC 6700 return data unaltered > return $data; > } > > } >