Question about a blob field?

[radiations3]

I want to know that as we can check the file type while uploading an image or any file

just like this..

Can we also check the file type stored in the blob field with the same piece of code and apply conditions on it accordingly?

[phpSensei]

I do

$image = imagecreatefromstring($row['imageBlob']);
print getimagesize($image);

[radiations3]

I do

$image = imagecreatefromstring($row['imageBlob']);
print getimagesize($image);

 

the piece of code that you've shared i think it returns the file size ... I want to know How to return the file type (any builtin function just like getimagesize()???

[phpSensei]

http://php.net/manual/en/function.filetype.php

[radiations3]

suppose if i write

echo filetype('$row_Recordset2['file']');

 

will the above code return the filetype like jpeg,pdf,doc ???

[voip03]

$ext = 'anc.jpg';

print end(explode(".", $ext));

[radiations3]

$ext = 'anc.jpg';

print end(explode(".", $ext));

 

my question is about returning the file type from the blob field ( where files with different formats saved into the blob fields )..

how to do that.

 

I have saved only images into the blob field and display them from there.

if i'll know about returning the filetype from blob field then i may use this field with the files other than images..

[phpSensei]

edit: typing code

 

I believe you need to save the BLOB's content type, as in the FILE when it is being uploaded, then you define the header Content Type  Header("Content-type: $contentType")

 

example

<?php

$sql = "SELECT * FROM `table`";
$result = mysql_query($sql) ;

        $contentType = $row['contentType'];

        header("Content-type: $contentType");

        $im =  imagecreatefromstring($contentType);

        imagejpeg($im);

        imagedestroy($im);


    }

?>

[radiations3]

edit: typing code

 

?? what to edit 

[phpSensei]

See post above, you need to save the content type, file type, and other information when your uploading the file.

[radiations3]

See post above, you need to save the content type, file type, and other information when your uploading the file.

 

Hmmmm this is a nice approach for dealing with the file type i can use it...

Thanx.... Another issue resolved Thanx ALL!!!!