Question

In a server sided script I am using the following PHP code to encode an image:

    $handle = fopen($imageSrc,'r');
    $file_content = fread($handle,filesize($imageSrc));
    fclose($handle);
    $encoded = base64_encode($file_content);

    echo $encoded;

When I read the file through a webservice it has the length 9309 bytes which is an invalid length for base64 encoded data. Examining the data, I found out that the value last byte is 10 (LF). Right now I am cropping the last byte away in my webservices before decoding the data. Is there a clean way to avoid the LF character to be sent?

Answer 1

I’m not sure what is causing this, but having debugged similar issues in the past, I would assume that there is something below the echo causing a \n to be output.

To test this, put a die(); directly after the echo. If my theory is correct, you can either just leave the die();, or (better) move it progressively downwards in the execution flow until you find whatever is causing the \n to be output.