On 10/23/07, Dan Shirah <mrsquash2@xxxxxxxxx> wrote:
>
> I am having some issues with empty().
>
> On my page I have a text area:
>
> <table align="center" border="0" cellpadding="0" cellspacing="0"
> width="680">
> <tr>
> <td width="600" align="center"><span class="inputlbl">Comments:
> <textarea name="comments" tabindex="39" rows="3" cols="45"
> wrap="soft"></textarea>
> </span> </td>
> </tr>
> </table>
>
> I then submit my page and on the following page I put the posted value
> into
> two variables.
>
> $comments = strtoupper($_POST['comments']);
> $check_comments = $_POST['comments'];
>
> I made two variables for the same posted value because I believe empty()
> does not work with strtoupper in front of the value. It only works with a
> standalone variable, correct?
>
> So, once I have assigned my comments to a variable I am doing:
>
> if(!empty($check_comments)) {
> echo "Do Something";
> }
>
> However, if the comments textarea is left blank I just get a generic error
>
> "Changed database context to database"
>
> I've tried the below and get the same result:
> if($check_comments != "") {
> echo "Do Something";
> }
>
> When comments is left blank and I echo out the value for $check_comments
> it
> returns nothing at all which is why I think empty() or "" should work, but
> they don't.
>
> Ideas?
I've been tripped up by spaces in text fields/boxes, so I've learned to trim
before testing for strlen == 0.
strtoupper returns a string. If there were a zero-length string in the
textarea, I'd guess it would return a zero-length string.
Are you sure there are no carriage returns, etc... in your textarea ?
David
