Description:
------------
On using ini_set() function to enable PHP directive magic_quotes_sybase, we get bool(false) and directive is not enabled. This behaviour is seen only for php6. On php5, directive gets enabled using ini_set().

Reproduce code:
---------------
<?php
$str = "how're you?";
var_dump( addslashes($str) );

// turn on PHP directive magic quotes sybase

var_dump( ini_set("magic_quotes_sybase", "1") );
var_dump( addslashes($str) );
?>


Expected result:
----------------
string(12) "how\'re you?"
string(1) "0"
string(12) "how''re you?"


Actual result:
--------------
string(12) "how\'re you?"
bool(false)
string(12) "how\'re you?"