note 113944 added to function.exif-read-data

I posted the original version of the function, but after using it for a while I discovered I didn't do enough error checking. I have re-factored it somewhat, and it now returns an empty array should it not be able to read the image's exif. If it is able to, it will return the details it was able to retrieve. And this should be without error. I am suppressing errors, because if you pass it images which cannot parse, you will get a warning. <?php # Modified Version of cameraUsed, no longer returns date. public function cameraUsed($imagePath) { # The default empty return $return = array( 'make' => "", 'model' => "", 'exposure' => "", 'aperture' => "", 'iso' => "" ); // Check if the variable is set and if the file itself exists before continuing if ((isset($imagePath)) AND (file_exists($imagePath))) { // There are 2 arrays which contains the information we are after, so it's easier to state them both $exif_ifd0 = @read_exif_data($imagePath ,'IFD0' ,0); $exif_exif = @read_exif_data($imagePath ,'EXIF' ,0); # Ensure that we actually got some information if (($exif_ifd0 !== false) AND ($exif_exif !== false)) { // Make if (@array_key_exists('Make', $exif_ifd0)) { $return['make'] = $exif_ifd0['Make']; } // Model if (@array_key_exists('Model', $exif_ifd0)) { $return['model'] = $exif_ifd0['Model']; } // Exposure if (@array_key_exists('ExposureTime', $exif_ifd0)) { $return['exposure'] = $exif_ifd0['ExposureTime']; } // Aperture if (@array_key_exists('ApertureFNumber', $exif_ifd0['COMPUTED'])) { $return['aperture'] = $exif_ifd0['COMPUTED']['ApertureFNumber']; } // ISO if (@array_key_exists('ISOSpeedRatings',$exif_exif)) { $return['iso'] = $exif_exif['ISOSpeedRatings']; } } } # Return either an empty array, or the details which we were able to extrapolate. return $return; } ?> ---- Server IP: 72.52.91.14 Probable Submitter: 72.52.91.14 ---- Manual Page -- http://php.net/manual/en/function.exif-read-data.php Edit -- https://master.php.net/note/edit/113944 Del: integrated -- https://master.php.net/note/delete/113944/integrated Del: useless -- https://master.php.net/note/delete/113944/useless Del: bad code -- https://master.php.net/note/delete/113944/bad+code Del: spam -- https://master.php.net/note/delete/113944/spam Del: non-english -- https://master.php.net/note/delete/113944/non-english Del: in docs -- https://master.php.net/note/delete/113944/in+docs Del: other reasons-- https://master.php.net/note/delete/113944 Reject -- https://master.php.net/note/reject/113944 Search -- https://master.php.net/manage/user-notes.php