pohp doubts

Hi guys,

I got some questions wish to ask you guys.

- I have seen some website just show a part of their url(without showing file extension).
e.g: www.myweb.com/log
how can i do that by using php ? do they use basename function or something else ?

- I seen a lot of sample codes use '->' symbol. I just know this symbol is used in class.. but when i look in their code, i dun see they are using any class though
e.g:
$q->query($DB, $sSQL);
$id=$DB->nextid($pho_main);
$var = (!empty($rec->body_color)) ? "'$rec->body_color'" : "\$PHORUM['default_body_color']";
can u guys give me more idea about the use of ->

- is there anyway i can check the users computer resolution and adjust the dimension of my webpage accordingly..
for instance, i created all my files in 1024*768. When a user with a screen resolution 800*600 visit my site, is there any possibility that the php code will check the user's display setting and then adjust my file dimension that fits his display setting. I just dun want to create extra files with different dimension all the time...

- i refer to one of the reference and i dun really get what is this code actually mean. I hope you guys can give me a hint about this.
code:
$current_page = ($_REQUEST[page_num]) ? $_REQUEST[page_num] : 1;
is it use like a if else statement where is page_num is nothing set it as 1 ??

please advise. Thanks

Alicia,

So many questions... =)
Allow me to answer them systematically, hope this helps...


- A possible answer to your first question could be the ForceType directive in Apache
For example:
<Files log>
ForceType application/x-httpd-php
</Files>


- the arrow operator is used to refence variables and functions from a class...
in your example, $id = $DB->nextid($pho_main);
nextid() is a function from the class that $DB is declared as... (What's $DB initially declared as? $DB = new Whatever() )


- The user's monitor resolution can be determined with Javascript... try this:
<A HREF="javascript:alert('Your resolution is '+screen.width+'x'+screen.height);">
Click for your screen resolution</A>


- $_REQUEST is a superglobal variable. It is an associative array consisting of the contents of $_GET, $_POST, and $_COOKIE.... refer to http://ca.php.net/manual/en/reserve...riables.request

oh, i just thought of something to add... the Apache ForceType section can work in an .htaccess file... basically name a file ".htaccess" (with the decimal as the first character) and enter that text... the first line, <File log> will assume any file named "log" will be treated as a PHP file.

also, the javascript example works in Netscape 4+ and Internet Explorer 5+

Ok, here is my bit to contribute: the example provided in your last question is called a ternary statement. Basically, it works just the way you stated, but you can find more info at php.net.

Good luck!
Joe