note 107537 added to function.getimagesize

I wanted to use getimagesize() on .SWF files stored in the database as blob data and couldn't find a simple solution, so I created my own. I am releasing this code under the MIT license to save everyone some time: <?php /* ---------------------------------------------------------------------- PHP Blob Data As File Stream v1.0 (C) 2012 Alex Yam <alexyam@live.com> This code is released under the MIT License. ---------------------------------------------------------------------- [Summary] A simple class for PHP functions to read and write blob data as a file using a stream wrapper. Particularly useful for running getimagesize() to get the width and height of .SWF Flash files that are stored in the database as blob data. Tested on PHP 5.3.10. ---------------------------------------------------------------------- [Usage Example] //Include include('./blob_data_as_file_stream.php'); //Register the stream wrapper stream_wrapper_register("BlobDataAsFileStream", "blob_data_as_file_stream"); //Fetch a .SWF file from the Adobe website and store it into a variable. //Replace this with your own fetch-swf-blob-data-from-database code. $swf_url = 'http://www.adobe.com/swf/software/flash/about/flashAbout_info_small.swf'; $swf_blob_data = file_get_contents($swf_url); //Store $swf_blob_data to the data stream blob_data_as_file_stream::$blob_data_stream = $swf_blob_data; //Run getimagesize() on the data stream $swf_info = getimagesize('BlobDataAsFileStream://'); var_dump($swf_info); ---------------------------------------------------------------------- [Usage Output] array(5) { [0]=> int(159) [1]=> int(91) [2]=> int(13) [3]=> string(23) "width="159" height="91"" ["mime"]=> string(29) "application/x-shockwave-flash" } */ class blob_data_as_file_stream { private static $blob_data_position = 0; public static $blob_data_stream = ''; public static function stream_open($path,$mode,$options,&$opened_path){ static::$blob_data_position = 0; return true; } public static function stream_seek($seek_offset,$seek_whence){ $blob_data_length = strlen(static::$blob_data_stream); switch ($seek_whence) { case SEEK_SET: $new_blob_data_position = $seek_offset; break; case SEEK_CUR: $new_blob_data_position = static::$blob_data_position+$seek_offset; break; case SEEK_END: $new_blob_data_position = $blob_data_length+$seek_offset; break; default: return false; } if (($new_blob_data_position >= 0) AND ($new_blob_data_position <= $blob_data_length)){ static::$blob_data_position = $new_blob_data_position; return true; }else{ return false; } } public static function stream_tell(){ return static::$blob_data_position; } public static function stream_read($read_buffer_size){ $read_data = substr(static::$blob_data_stream,static::$blob_data_position,$read_buffer_size); static::$blob_data_position += strlen($read_data); return $read_data; } public static function stream_write($write_data){ $write_data_length=strlen($write_data); static::$blob_data_stream = substr(static::$blob_data_stream,0,static::$blob_data_position). $write_data.substr(static::$blob_data_stream,static::$blob_data_position+=$write_data_length); return $write_data_length; } public static function stream_eof(){ return static::$blob_data_position >= strlen(static::$blob_data_stream); } } ?> ---- Server IP: 69.147.83.197 Probable Submitter: 202.55.35.60 ---- Manual Page -- http://www.php.net/manual/en/function.getimagesize.php Edit -- https://master.php.net/note/edit/107537 Del: integrated -- https://master.php.net/note/delete/107537/integrated Del: useless -- https://master.php.net/note/delete/107537/useless Del: bad code -- https://master.php.net/note/delete/107537/bad+code Del: spam -- https://master.php.net/note/delete/107537/spam Del: non-english -- https://master.php.net/note/delete/107537/non-english Del: in docs -- https://master.php.net/note/delete/107537/in+docs Del: other reasons-- https://master.php.net/note/delete/107537 Reject -- https://master.php.net/note/reject/107537 Search -- https://master.php.net/manage/user-notes.php