PHP Roll Dice
This short tutorial will show you how to create a dice roller in PHP with BBCode for things such as a forum or a CMS.This was originally requested by zerocool in the RMB forum topid ID 480
PHP Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
<?php
function doDice($text){ //the main dice function
if(preg_match("/^(.*?)\[dice\]\s*(\d+)\s*d\s*(\d+)\s*\[\/dice\]/i", $text, $things)) { //if it matches only the [dice]1d10[/dice] then do without the motive
return rolldice($things[2], $things[3], $things[1]);
}elseif(preg_match("/^(.*?)\[dice=(.*?)\]\s*(\d+)\s*d\s*(\d+)\s*\[\/dice\]/i", $text, $things)){ //or if it does have [dice=My Motive]1d10[/dice] supply the motive.
return rolldice($things[3], $things[4], $things[1], $things[2]);
} //end motive check
} //end main function
function rolldice($dice, $sides, $originalText = null, $motive = null)
{ //the core of the roll dice function
$total = 0; //the total value
for ($i=1; $i <= $dice; $i++) //loop for the amount of dice
{
$dv = rand(1, $sides); //get a random number from 1 to the number of sides on the dice
$total = $total + $dv; //add to the total.
} //end our loop
$string = ($motive != null) ? "$originalTextRolling $dice dice with $sides sides <$motive>...Total value: $total" : "$originalTextRolling $dice dice with $sides sides...Total Value: $total";
//Above: set the string depending on if a motive is specified or not
return $string; //return the string from above with the original text from the post or other item
} //end the core function
?>
You must start with the doDice function on your post in order for it to run correctly.
So you would have something like the following:
Code
$message = doDice("Here is the original message and i'm rolling a dice with motive.. [dice=My Motive Here]1d10[/dice]");
print $message;
This will output:
Code
Here is the original message and I'm rolling a dice with motive..
Rolling 1 dice with 10 sides <My Motive Here>
Total value: X
X would be the total value returned by the core's $total variable which is calculated per-die.
Hope you learned something from this.
There are currently no comments for this tutorial.