show something by percentage

newbieewwa

Hi:
I want to make a script which will show the ads by the percentage.
For example, I set an ad's display ratio as 30% percent, then, 30% of time when the page is loaded, the ad will show up, other time, the ad dosen't show. Anybody can give me a hint how I can do it?
Many many Thanks!

Shrike

The problem is how to quantify 100%. Would it be 10 requests, or 100, or 1000?

TimTimTimma

Hm, how can you show something by a percent, when the total the percent is to be judged by is always changing??

Like 10% of 10 is 1, and 10% of 100 is 10, how are you going to display an ad 10% of the time through that first visit? :-S

It seems like it would be easier to give the advertisments weight, like one has a 30% chance of being SHOWN, not is shown 30% of the time. This is much easier, it might not be what you are looking for but it makes it easier to display the advertisments.

newbieewwa

Thanks everybody for the help!🙂

It might be difficult to make ad show up by percentage of request (for example, 100 request show 30 randomly), I don't know how yet, for example how to let it show 30 ads randomly in 100 request?

maybe I will let it show up by percentage of chance,(for example,an ad has 30% chance to show).

I guess I can use rand() to make ads random, like this

$percent=30;
//percentage of the ads to show

$range=floor(100/30)
// range of numbers, for example,
// 30% means 3 request, only show one

$number=rand(1,$range);
{
if($number==1) // 1 has 30% to show up
//show ads here
}

Thanks!

TimTimTimma

that is MUCH easier and works just as fine, if not better in some cases IMO.