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Max submits limited to "X" number

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Mar 13.2006

Thanks to the help of this forum, google and reading here:
[url]http://www.php.net/quickref.php[/url]
In addition to Scott Henderson allowing me to use his script I’ve been able to make the following page:
[url]http://www.hotroddersauctions.com/trees/tournamenttime.php[/url]

I have two problems (maybe three) that I can’t seem to work-out.

I think that a new user gets an error in their “My Times” coloum but I’m not sure about that b/c I’m not a new user?

The real question I have is how can I limit a user to 5 submits?

And if I’m not using sessionid’s can I prevent resubmit on page refresh? reset only clears the time on the page, but doesn’t seem to clear the browser or something? The reason I want to do this is to prevent somebody from setting a good time and then hitting refresh over and over.

I know this is more than one question but I’ve been trying for days to figure out the no submit on refresh and the 5 submit limit and it seems to be beyond my abilities right now. please keep in mind that 2 weeks ago I didn’t even know that all php must start with <?php ? Thanks for the help!!

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PHP

5 Comments(s) ↴

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@WebnerdMar 13.2006 — Browser cookies are a good option. Example:

[code=php]
<?

if(isset($_COOKIE["submissions"])){

if(isset($_POST) && sizeof($_POST)>0){

setcookie("submissions",$_COOKIE["submissions"]++,time()+60*60*24*7);

}

if($_COOKIE["submissions"]>=5){

echo "no more for you buddy!";

exit;
}

}else{
if(isset($_POST) && sizeof($_POST)>0){

setcookie("submissions",1,time()+60*60*24*7);

}
}
[/code]

And also, PHP does not have to start with <?php. It can start with <? if you have enable_short_tags on.
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@72newbieauthorMar 13.2006 — I've tried that every which way I can think of and i keep getting an error "header already sent on line xx which is always this line:

setcookie("submissions",1,time()+60*60*24*7);


If I remove that line there is no error but it doesn't prevent posting over 5 times.

I see the line above it that looks similar, do they do the same thing?
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@crh3675Mar 13.2006 — You need to put that code before any HTML output. Top of the page is best.
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@72newbieauthorMar 13.2006 — Should this stand alone or does it need to be intergrated into my submit code? No matter what I seem to do I get the error on the same line.
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@72newbieauthorMar 14.2006 — Can you explain this code and how it works?
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