It ain't working.

Swift&Smart · 04-10-2003, 12:08 PM

I am an enthusiastic guy who loves PHP very much.So I bought a pretty expensive wrox Professional PHP4 programming book to learn.However,some code seems like having error.

...I hope you guys will point out the error and tell me why while I have no experience about PHP 4. (It doesn't accumulate 1 in order to keep track the visit time!)
************************************************************************
<?php
$accesses++;
setcookie("accesses",$accesses,time()+3600,"","",0);
?>

<html>
Thank you for visiting my site.You've seen this page

<?php
echo($accesses);
if ($accesses==1) {
echo(" time!");
}
else {
echo(" times");
}
?>

</html>
************************************************************************

And more,I cannot run this script on Windows while I can run it on Linux.How comes???

Any suggestions are appreciated!

david_ross · 04-10-2003, 03:00 PM

I don't know much about PHP but try this:

Code:

<?php
$num = 1 + $_COOKIE["accesses"];
setcookie("accesses",$num,time()+3600,"","",0);
?>

<html>
Thank you for visiting my site.You've seen this page

<?php
echo($num);
if ($num==1) {
echo(" time!");
}
else {
echo(" times");
}
?>

</html>

Swift&Smart · 04-10-2003, 10:29 PM

Thank you very much,it works fine!

I found that this book(WROX professional PHP 4 programming) has many errata.......Some of the errata is disastrous.

david_ross · 04-11-2003, 02:30 PM

In my opinion PHP is still in its infancy and is only useful for web based interfaces. Hence the reason I use perl - it can be used for system tasks and web based scripting.

Shak · 04-13-2003, 09:38 AM

Agreed, PHP is much better for web based anything than CGI will ever be. Just the setup required for CGI makes it rubbish.

Perl however is much better than PHP for anything system based.

Shak

Unseen · 04-15-2003, 07:25 AM

Just a thought. Is it really necessary for you to use cookies on your site? You might want to just look into using the session properties of php.

Basically all you need to do is have session_start(); as the first line on on your php page and you can then use the $_SESSION array to store/retrieve values from.

These values will persist from page to page.

XavierP · 04-15-2003, 07:42 AM

Have you tried going to the publisher's website? It is possible that they will have a list of errata there - Sybex does this and it was helpful to me.

Swift&Smart · 04-15-2003, 08:38 AM

I never think that this post has many replies...It's great.

By the way,I know session is better than cookies while it will be stored at the server rather than user's hard drive.(And no user permission to do so

)However,I just read that topic so I followed the tutorial.

And XavierP,I've checked out the errata page of this book(Professional PHP 4 from WROX),they don't include this errata.I definitely think that if you want to publish a book,you must check it again and again to see whether there are any error.Because it's a waste of time to check the errata from their website....

I appreciated every help,opinion from you guys.

XavierP · 04-15-2003, 09:02 AM

I knowthat this is of no real help now (as you have already forked out the cash), but O'Reilly books seem to be the better ones ATM. Oh, and Linux Format magazine regularly review books like this and problems like the ones you've had are often flagged up.

Like I said, of no real help to you now, but.....

Hope you get your PHP probs sorted.