Posted by Matthew Weier O'Phinney on 07/25/05 00:30

* Bruce Gilbert <webguync@gmail.com>:
> I am well versed in coding with xhtml which requires all lower case
> and am pretty much a newbie at PHP so that is why I am asking this
> question.
>
> is this acceptible
>
> if ($_post [sender_email] == "") or does at have to be if ($_POST
> [sender_email] == "")
>
> in short, do uppercase and lowercase always have the same meaning.

PHP is case sensitive. Additionally, quotes, or the absense of quotes,
can change the context. I bring this up because the example you have
above, $_post[sender_email] contains two errors:

* $_post will likely be empty, whereas the PHP superglobal $_POST will
likely contain the data you're looking for ;-)
* $_post[sender_email] refers to the value in the $_post array returned
by an array key that is the same name as the value of the constant
sender_email. You almost certainly were actually meant
$_POST['sender_email'] (note the quotes), which would refer to the
value associated with the array key 'sender_emaail' in the $_POST
array.

You should probably do some reading in the introductory chapters of the
PHP manual, specifically the variables section:

http://php.net/variables

Cheers!

--
Matthew Weier O'Phinney
Zend Certified Engineer
http://weierophinney.net/matthew/

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