EllisLab/CodeIgniter — pull request #2547 by HashemQolami (2013-07-21 18:48:02+00:00)
Title: Fix Form Validation issue with text inputs which have array as name

According to the user guide, **text** `input`s could have `array`s as name.

```HTML

```
If when the form is submitted these inputs were blank, the `$postdata` would be an empty string (unlike `checkbox` type).
So, rules that need a non-string such as: `numeric`, would return `FALSE`, whether `required` rule is added or not.

Signed-off-by: Hashem Qolami