file upload

[Anon]

When we use the following code is there any way that we can check the file extension on the server side before the actual upload takes place on clicking the Send File button.(Thereby minimize the time by not uploading the unmatched files)

<form enctype="multipart/form-data" action="URL" method="post">
<input type="hidden" name="MAX_FILE_SIZE" value="1000">
Send this file: <input name="userfile" type="file">
<input type="submit" value="Send File">
</form>

[Anon]

It is not possible to check the extension server side before the file is uploaded... However, you should be able to check it by using javascript client side... The server can only check the extension after the entire file is uploaded (which is also when the actual PHP script is started).

I'm not great with javascript (however I do know it should be possible to check for file extensions client side with javascript), but maybe somebody else could help you out.

[Anon]

I used a script to upload a file to mysql database longblob field as following:

$data = addslashes(fread(fopen($binFile, "r"), filesize($binFile)));
$strDescription = addslashes(nl2br($txtDescription));
$SQL="INSERT INTO ARQUIVO (Bin_Data, Nome_File, Tam_File, Tipo_File) VALUES ('$data',  '$binFile_name', $binFile_size, '$binFile_type')" ;
$result=mysql_query($SQL);

The problem is that I don´t know how to dowonload this file from mysql Database. May you help me? Please?

Thanks,

Jehoshaphat