Single quotes are normal strings. Double quotes are strings in which
substitutions can take place. For example:
<?php
$a = 'test';
echo '$a'; // outputs $a
echo "$a"; // outputs test
?>
Double quotes also expand escape strings (e.g."\n") whereas single
quotes don't.
Cheers,
Marco
--
------------
php|architect - The Magazine for PHP Professionals
The monthly magazine dedicated to the world of PHP programming
Check us out on the web at http://www.phparch.com!
--- Begin Message ---
Marco (or anyone)
What is the difference between:
$familyname = getvar("familyname");
and
$familyname = getvar('familyname');
What do single quotes do, as a general rule, that double cannot (he asks remembering
something, but not sure what)?
Marco Tabini wrote:
> I haven't followed the rest of the thread, but how about using a
> function?
>
> function getvar ($varname)
> {
> if (isset ($_POST[$varname])
> {
> $_SESSION[$varname] = $_POST[$varname];
> return $_POST[$varname];
> }
> elseif (isset ($_SESSION[$varname]))
> return $_SESSION[$varname];
> }
>
> session_start();
>
> // You don't need session_register anymore
>
> $familyname = getvar('familyname');
>
> and so on--just one line per variable.
>
> Hope this helps.
>
> Cheers,
>
> Marco
> --
> ------------
> php|architect - The Magazine for PHP Professionals
> The monthly magazine dedicated to the world of PHP programming
>
> Check us out on the web at http://www.phparch.com!
>
>
>-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Subject: [PHP] Session: I RTFM
> Date: Sat, 14 Dec 2002 18:41:40 -0500
> From: John Taylor-Johnston <[EMAIL PROTECTED]>
> Reply-To: [EMAIL PROTECTED]
> Organization: FLSH, U-de-S
> To: [EMAIL PROTECTED]
>
> >Jason wrote:
> >RTFM again.
>
> Jason, again, I RTFM, but did not get it working.
> Otherwise I wouldn't have dared ask a question.
>
> >Sessions depends on a number of factors
> >including your version of PHP and the setting of register_globals.
>
> The FM manual says:
>
> "$_SESSION (or $HTTP_SESSION_VARS with PHP 4.0.6 or less) is recommended"
>
> So I am using "PHP Version 4.1.2" (and "4.2.3" on my localhost to test offline)
>
> Ok. I quit using $HTTP_POST_VARS["familyname"].
>
> With a little rethinking, I have this working, I hope.
>
> Now ... is there a cleaner way to assign my variable "familyname"?
>
> Pseudo code:
>
> if _post["familyname"] exists set session variable
> (no sense in setting it until I post it)
> if _session["familyname"] exists, $familyname = $_SESSION["familyname"];
>
> I'll have about 30 variables. Going to be alot of lines. There must be an easier,
>cleaner way?
>
> <?php
> #session_name("TestALS");
> session_start();
>
> if (isset($_POST["familyname"]))
> {
> session_register("familyname");
> $familyname = $_POST["familyname"];
> echo "Yay: \$familyname= $familyname<br>";
> }
>
> if (isset($_SESSION["familyname"]))
> {
> $familyname = $_SESSION["familyname"];
> echo "yay session works, \$familyname= $familyname<br>";
> }
>
> --
> PHP General Mailing List (http://www.php.net/)
> To unsubscribe, visit: http://www.php.net/unsub.php
--
John Taylor-Johnston
-----------------------------------------------------------------------------
"If it's not open-source, it's Murphy's Law."
' ' ' Collège de Sherbrooke:
ô¿ô http://www.collegesherbrooke.qc.ca/languesmodernes/
- Université de Sherbrooke:
http://compcanlit.ca/
819-569-2064
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
--- End Message ---
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
