Description:
------------
The class synopsis for SplFileObject 
(http://www.php.net/manual/en/class.splfileobject.php#splfileobject.synopsis) 
indicates that the SKIP_EMPTY constant is defined with the value of 6.

I have included a PHPUnit test case showing that the SKIP_EMPTY constant does 
not match the value listed in the documentation.

The value of the SplFileObject::SKIP_EMPTY constant changed in PHP 5.3.8 from 6 
to 4 (https://bugs.php.net/bug.php?id=55807) and the problem still remains. It 
was noticed and a new bug report was opened for the problem it caused 
(https://bugs.php.net/bug.php?id=61032).

Ideally, the constant should be restored to its old value of 6. Another 
acceptable choice is to update the documentation so that the constant is 
accurately documented in addition to adding a note to the SKIP_EMPTY constant 
indicating that it requires the READ_AHEAD flag to also be set in order to 
function.

Test script:
---------------
class SplFileObjectTest extends PHPUnit_Framework_TestCase
{
    public function testConstants()
    {
        // constants taken from http://www.php.net/manual/en/class.splfileobject.php#splfileobject.synopsis
        $this->assertEquals(1, SplFileObject::DROP_NEW_LINE);
        $this->assertEquals(2, SplFileObject::READ_AHEAD);
        $this->assertEquals(6, SplFileObject::SKIP_EMPTY); // <- THIS ONE FAILS
        $this->assertEquals(8, SplFileObject::READ_CSV);
    }
}

Expected result:
----------------
Ideally, all the assertions pass.

Actual result:
--------------
PHPUnit_Framework_ExpectationFailedException : Failed asserting that 4 matches 
expected 6.
Expected :6
Actual   :4