Rev & php script question

[jbv]

Hi there,

I'm using "post myvar to url "xxxx" in a stack to access data stored in
mysql
via a php script. The php script ends with "echo $myvar;" and the
strange thing
is that it returns 2 empty lines before the value of $myvar ONLY when I
access
mysql in the script... when I post a similar content to a php script
that doesn't
connect to mysql, the value returned is "clean" (no empty lines).
I've tested the script on 2 different servers running 2 different
versions of Linux,
Apache, php and mysql.

is there a way to bypass this problem ? may be by changing settings of
the http header
in the php script ?

Thanks in advance,
JB