Very Large MySQL Query String

I can't seem to figure out the following. I use the http upload functions a lot, works great!!.. For some months now I have been using a small PHP program which I use to upload PDF files of scanned documents and insert them into a Mysql table.. Normally these files are small (<250 kb), but I now have a PDF of 1 MB... When uploading files I run the function: chunk_split(base64_encode($binaryfile)); to encode it, this to transform the binary file to text.. (Works great!!!) When the query was called to insert the data, nothing happens, also no error from mysql... Only think I can think of is that the mysql query string is to long.. ?? (The data when encoded is about 1.3 MB of text).. This is the source code.. if (!($userfile_size == 0)) {$fd = fopen ($userfile, "r"); $contents = fread ($fd, filesize ($userfile)); fclose ($fd); unlink ($userfile); echo "Eerste RAW: ".strlen($contents); $encodes_data = chunk_split(base64_encode($contents)); $userfile_name = str_replace(" ", "", "$userfile_name"); echo strlen($encodes_data)." - Displays text size <BR>"; //Works right! mysql ($databasename_boekhoud, "insert mubo_boekhoud_images (data, originalname, groep, type) values '$encodes_data', '$userfile_name', '$groep', '$userfile_type')"); // mysql_error(); //No error given..? } Any suggestions are very much appreciated... With kind regards, David Bouw