Re: posting images from a mac

When you upload your files from the Mac, try transferring via binary format rather than Macbinary or automatic. ---------- >From: "Jeroen Olthof" <webmaster@smurf.eu.org> >To: php-general@lists.php.net >Subject: [PHP] posting images from a mac >Date: Thu, Aug 17, 2000, 8:12 PM > > hi, > > I'm having a problem getting some file info from a images posted in a form > (type=file) > images posted by a pc is working fine > > because I don't want to make a tmp file to get this info (like size , type > jpg, gif or png ,height and width) > I use a php script that I found here a while ago > I'm personal think it has something to do with a max storing images data in > hex instead of bin > > here is the script I'm using for getting the info from a posted file > > <?php > /* Function: array elqGetImageFormat(string $dataFromImageFile) > > elqGetImageFormat is a php3 script with functionality similar to that > of php3's internal function GetImageSize(string $fileName). > > The differences are as follows: > - elqGetImageFormat takes the data from an image file as argument > instead of the file name. Ie. you can use the function on > data allready read from an image file, imagedata read from > a blob field in a database, or similar. > > - elqGetImageFormat does NOT retrieve any JPEG/JFIF APP marker info, > thus a call to > elqGetImageData(string $dataFromImageFile, array [imageinfo]) > will generate an error. > > For further documentation on use of this function, consult your > regular php3 reference on the GetImageSize function. > > Copyright notice: > "This piece of code is copyright Oyvind Hallsteinsen, 2000. > The code is to be seen as public domain, use it for whatever > it's worth. The code is provided "as is", and comes with > NO WARRANTY whatsoever. > Please let this note follow your modified versions." > > Code originated from: http://www.elq.org > > - Oyvind Hallsteinsen aka Gosub / ELq - gosub@elq.org > > */ > > > /* Defining the JFIF markers we'll be using */ > > define(M_SOF0, "\xc0"); /* Start Of Frame N */ > define(M_SOF1, "\xc1"); /* N indicates which > compression process */ > define(M_SOF2, "\xc2"); /* Only SOF0-SOF2 are now in > common use */ > define(M_SOF3, "\xc3"); > define(M_SOF5, "\xc5"); /* NB: codes C4 and CC are NOT > SOF markers */ > define(M_SOF6, "\xc6"); > define(M_SOF7, "\xc7"); > define(M_SOF9, "\xc9"); > define(M_SOF10, "\xca"); > define(M_SOF11, "\xcb"); > define(M_SOF13, "\xcd"); > define(M_SOF14, "\xce"); > define(M_SOF15, "\xcf"); > define(M_EOI, "\xd9"); /* End Of Image (end of > datastream) */ > define(M_SOS, "\xda"); /* Start Of Scan - image data start > */ > > > function elqRead1Byte(&$imgData, &$imgPos) { /* Get 1 byte from data */ > $c = ord($imgData[$imgPos++]); > return $c; > } > > > function elqRead2Bytes(&$imgData, &$imgPos) { /* Get 2 bytes from data */ > $c1 = (ord($imgData[$imgPos++])<<8); > $c2 = ord($imgData[$imgPos++]); > return ($c1 + $c2); > } > > > function elqNextMarker(&$imgData, &$imgPos) { /* Find next marker segment > and return marker code */ > $c = elqRead1Byte($imgData, $imgPos); > while ($c != 255) { > $c = elqRead1Byte($imgData, $imgPos); > } > do { > $c = elqRead1Byte($imgData, $imgPos); > } while ($c == 255); > return $c; > } > > > function elqProcessSof(&$imgData, &$imgPos) { /* Grab width/height from SOF > segment */ > $imgPos += 3; > $imgInfo[1] = elqRead2Bytes($imgData, $imgPos); > $imgInfo[0] = elqRead2Bytes($imgData, $imgPos); > return $imgInfo; > } > > > function elqSkipSegment(&$imgData, &$imgPos) { /* Skip entire marker > segment (uninteresting) */ > $length = elqRead2Bytes($imgData, &$imgPos); > $length -= 2; > $imgPos += $length; > } > > > function elqJpegInfo(&$imgData) { > $imgPos = 2; > while($imgPos < strlen($imgData)) { /* Go through data and make sure > loop exits even if jfif is corrupt */ > $marker = elqNextMarker($imgData, $imgPos); > switch (chr($marker)) { > case M_SOF0: > case M_SOF1: > case M_SOF2: > case M_SOF3: > case M_SOF5: > case M_SOF6: > case M_SOF7: > case M_SOF9: > case M_SOF10: > case M_SOF11: > case M_SOF12: > case M_SOF13: > case M_SOF14: > case M_SOF15: > $imgInfo = elqProcessSof($imgData, $imgPos); > return $imgInfo; > case M_EOI: > case M_SOS: > return FALSE; /* End loop in case we find one of these markers > */ > default: > elqSkipSegment($imgData, $imgPos); /* We're not interested in other > markers */ > break; > } > } > } > > > function elqGenSizeArg($width, $height) { /* Generate Width/height args for > img tag */ > return "width=\"" . $width . "\" height=\"" . $height . > "\""; > } > > > function elqGetImageFormat(&$imgData) { /* Determine file type, > extract/generate info */ > file://bin > $gif_sig = "\x47\x49\x46"; > $jpeg_sig = "\xff\xd8\xff"; > $png_sig = "\x89\x50\x4e\x47\x0d\x0a\x1a\x0a"; > file://hex > $gif_sigh = bin2hex($gif_sig); > $jpeg_sigh = bin2hex($jpeg_sig); > $png_sigh = bin2hex($png_sig); > > if(strcmp($gif_sig, substr($imgData, 0, 3)) == 0) { > $imgInfo[0] = ord($imgData[6]) + (ord($imgData[7])<<8); > $imgInfo[1] = ord($imgData[8]) + (ord($imgData[9])<<8); > $imgInfo[2] = "gif"; > } else if(strcmp($jpeg_sig, substr($imgData, 0, 3)) == 0) { > $imgInfo = elqJpegInfo($imgData); > if($imgInfo) $imgInfo[2] = "jpg"; > else $imgInfo = FALSE; > } else if(strcmp($png_sig, substr($imgData, 0, 8)) == 0) { > $imgInfo[0] = (ord($imgData[16])<<24) + (ord($imgData[17])<<16) + > (ord($imgData[18])<<8) + ord($imgData[19]); > $imgInfo[1] = (ord($imgData[20])<<24) + (ord($imgData[21])<<16) + > (ord($imgData[22])<<8) + ord($imgData[23]); > $imgInfo[2] = "png"; > } elseif(strcmp($gif_sigh, substr($imgData, 0, 3)) == 0) { > $imgInfo[0] = ord($imgData[6]) + (ord($imgData[7])<<8); > $imgInfo[1] = ord($imgData[8]) + (ord($imgData[9])<<8); > $imgInfo[2] = "gif"; > } else if(strcmp($jpeg_sigh, substr($imgData, 0, 3)) == 0) { > $imgInfo = elqJpegInfo($imgData); > if($imgInfo) $imgInfo[2] = "jpg"; > else $imgInfo = FALSE; > } else if(strcmp($png_sigh, substr($imgData, 0, 8)) == 0) { > $imgInfo[0] = (ord($imgData[16])<<24) + (ord($imgData[17])<<16) + > (ord($imgData[18])<<8) + ord($imgData[19]); > $imgInfo[1] = (ord($imgData[20])<<24) + (ord($imgData[21])<<16) + > (ord($imgData[22])<<8) + ord($imgData[23]); > $imgInfo[2] = "png"; > } else $imgInfo = FALSE; > > if($imgInfo) { /* In case everything went well, generate > width/height img argument */ > $imgInfo[3] = elqGenSizeArg($imgInfo[0], $imgInfo[1]); > } > > return $imgInfo; > } > > ?> > > can somebody help me with making it also work for a mac > > kind regards > Jeroen Olthof > Holland > > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net > For additional commands, e-mail: php-general-help@lists.php.net > To contact the list administrators, e-mail: php-list-admin@lists.php.net