executable script /tmp/bug:
>>>
# ! /usr/local/bin/php -f
<?php 
print "V1 = $V1n";
print "V2 = $V2n";
var_dump($HTTP_GET_VARS);
?>
<<<

command:
$  /tmp/bug "V1=val1&V2=val2"

output:
>>>
V1 = 
V2 = val2
array(2) {
  ["/tmp/bug_V1"]=>
  string(4) "val1"
  ["V2"]=>
  string(4) "val2"
}
<<<

problem:
... see: the first array index is parsed to "/tmp/bug_V1". 
downwardcompatibility to PHP3 not given !