Description:
------------
Calling base64_encode in php does not produce valid base64 encoded string.

The lines are too long, there should be a line break every 76 characters.

Example code below.



Reproduce code:
---------------
<?
$file = implode( "", file("http://bugs.php.net/gifs/logo-bug.gif") );
print base64_encode($file);
?>

This produces a string with just one line.

Expected result:
----------------
Base 64. 114 lines of text.

Actual result:
--------------
Not base 64. One line of text.