Description:
------------
The range() function incorrectly warns when the step size exceeds the distance between the min and the max values.  But when the min and max values are equal, there is no warning.  This is related to #21060 and #46631.

The documentation at <http://www.php.net/manual/en/function.range.php> gives no mention of possible warnings or errors.

The 'seq' utility is a good guide as to the expected output of the test script.
$ seq 1 2 4
1
3

$ seq 1 2 3
1
3

$ seq 1 2 2
1

$ seq 1 2 1
1


Test script:
---------------
print "range(1, 4, 2)\n";
print_r(range(1, 4, 2));
print "\n";

print "range(1, 3, 2)\n";
print_r(range(1, 3, 2));
print "\n";

print "range(1, 2, 2)\n";
print_r(range(1, 2, 2));
print "\n";

print "range(1, 1, 2)\n";
print_r(range(1, 1, 2));
print "\n";

Expected result:
----------------
range(1, 4, 2)
Array
(
    [0] => 1
    [1] => 3
)

range(1, 3, 2)
Array
(
    [0] => 1
    [1] => 3
)

range(1, 2, 2)
Array
(
    [0] => 1
)

range(1, 1, 2)
Array
(
    [0] => 1
)

Actual result:
--------------
range(1, 4, 2)
Array
(
    [0] => 1
    [1] => 3
)

range(1, 3, 2)
Array
(
    [0] => 1
    [1] => 3
)

range(1, 2, 2)

Warning: range(): step exceeds the specified range in /home/stevew/Desktop/PHP/php-trunk-201008060430/sapi/cli/test-range.php on line 16

range(1, 1, 2)
Array
(
    [0] => 1
)