Titles that include $_
appear in the question list improperly.
For an example, look at this search, and scroll about halfway down looking for the title "can I get PHP to stop replacing..."
The title appears as:
can I get PHP to stop replacing ‘.’ characters in can I get PHP to stop replacing ‘.’ characters in $_GET or $_POST arrays ?GET or can I get PHP to stop replacing ‘.’ characters in $_GET or $_POST arrays ?POST arrays ?
However the actual title is actually:
can I get PHP to stop replacing ‘.’ characters in $_GET or $_POST arrays ?
$_
is used to insert the title, so the title is reinserted for every occurrence.