!

[Robin]

what's ! do?

--
peace,
Robin
--------------
robin@csf.edu
Please CC a copy of your message to me.
--------------

[Dan Tripp]

Re: !

Robin wrote:[color=blue]
> what's ! do?
>
> --
> peace,
> Robin
> --------------
> robin@csf.edu
> Please CC a copy of your message to me.
> --------------
>
>
>[/color]

! is the logical NOT operator.

http://www.php.net/manual/en/language.operators.logical.php

Regards,

- Dan

http://www.dantripp.com/

[Cecile Muller]

Re: !

> what's ! do?

It returns the contrary of the boolean expression.
For example:

<?php
$i_should_say_h ello = true;
if (!$i_should_say _hello) echo "Hello world"; else "Good bye world";
?>

This will print "Good bye world" because ! means that if
$i_should_say_h ello is *not* true, it should print "hello world".

[CountScubula]

Re: !

It stand for NOT as in NOT equal !=

NOT TRUE !(true)

--
Mike Bradley
http://www.gzentools.com -- free online php tools
"Cecile Muller" <spam@wildpeaks .com> wrote in message
news:aff31ac6.0 401120325.4274f 1c9@posting.goo gle.com...[color=blue][color=green]
> > what's ! do?[/color]
>
> It returns the contrary of the boolean expression.
> For example:
>
> <?php
> $i_should_say_h ello = true;
> if (!$i_should_say _hello) echo "Hello world"; else "Good bye world";
> ?>
>
> This will print "Good bye world" because ! means that if
> $i_should_say_h ello is *not* true, it should print "hello world".[/color]