Description:
------------
I have upgraded from PHP 5.0.1 to 5.1.4 (and also New Apache 2.2.2)
The PHP script which runs without problems with old version, now makes problems.
Example:
echo "Line bevor base64_decode: String is". $PWD ."<br>";
$PWD = base64_decode($PWD);  
echo "Line after base_64_decode: String is" .$PWD ."<br>";

The first echo shows the variable $PWD correct, but after 
$PWD = base64_decode($PWD);
the variable is empty.

I switched back to my old Apache and PHP version => all ok
Tried with Apache 2.0.55 and PHP 5.0.5  => all ok

Something wrong with base_64_decode??

regards
Hansjoerg

Reproduce code:
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$PWD = "hu 5HPSaRWZKa62ONP2ycA==";
echo "Line bevor base64_decode: String is". $PWD ."<br>";
$PWD = base64_decode($PWD);  
echo "Line after base_64_decode: String is" .$PWD ."<br>";


Expected result:
----------------
After base64_decode we should have an output

Actual result:
--------------
nothing happens