Display code randomly?

[JamieWarren09]

Hi guy's i've created a points script, which users can randomly earn points.

and then spend them on certain parts of my website. Im stuck on one part though and was wondering if anyone can help?

I need some sort of code that will display a submit button i've got - randomly..


Like so that, if a user, goes on a page, theres like a 25 % chance that it will display my submit button.


Thanks,

Jamie

[stlaural]

Not sure about how to make sure its a 25% chance and I don't know much about PHP, but I think you could simply make a random between 4 different values and if it happens to be the right one then display the button.

All you need is to use rand and then an if statement to check which value was selected.

I think that would be a good start.

[Justa Lol]

well 25% is simply make a random that will display 1 out of 4 times.

[JamieWarren09]

Hiya, Thanks for the replys!

By anychance, do you know what code it would be to use, for the rand function to do so?

Thanks,
Jamie

[dclamp]

Something like this should work:

$randint = rand(1,4);

if ($randint == 4) {
       // button code here
} 

But you may want to keep a log of who it displays too. For example, you may only want them to see this button once ever, or once a week/day/hour etc. Other wise, every page refresh, they will have 1/4th chance of seeing it.

[JamieWarren09]

Thanks dclamp!

Quick question what would i edit, To make it so the user would only see it once, and never again?

Thanks,
Jamie

[JamieWarren09]

<?php

$randint = rand(1,4);

if ($randint == 4) {
       // button code here

     <form action="http://vitalradio.co.uk/scripts/points/100.php" method="post" name="myform" id="myform">

          <input name="doSave" type="submit" id="doSave" value="Redeem Points">

} 

?>

Im using the code above - But i keep getting a syntax error, Unexpected T_VARIABLE .

Any idea why?

Thanks

[JamieWarren09]

It's all cool now Done that, the codes now working! Thanks!

[dclamp]

If you only wanted them to see it once, you would either need to use a database and log some sort of user id. Alternatively you could use cookies but cookies can be manipulated or deleted in order to gain more points.

[Nightwalker83]

[CODE]
Im using the code above - But i keep getting a syntax error, Unexpected T_VARIABLE .

Any idea why?

What was the solution to that problem?

[dclamp]

What was the solution to that problem?

If you read the code he posted you should quickly find out.