How to generate 15 random numbers between (1,10)?

[darkslayer]

Hi there. I need a function that can generate 15 random numbers between (1,10) and then converts those numbers to Roman numbers. Anyone can help me?

[chrsm]

Have an array map of 1-10 to their Roman numeral equivalents.

 

Create an empty array to store the generated numbers in.

 

 

Use a for loop to go from 1 to 15 (or 0 to 14 if you are so inclined), each time storing the result from the random lookup in the (previously) empty array you created.

 

For example:

$numerals = array(1 => 'I', 2 => 'II', 3 => 'III', ...etc);
$results = array();

for($i = 1; $i <= 15; $i++) {
$rand = rand(1,10);
$results[] = $numerals[$rand];
}

 

And then functionize it.

[Hall of Famer]

Umm I suppose this should suffice. You can also expand the class Rand to include other methods in future.

 

class Rand{
   static $Roman = array("I", "II", "III", "IV", "V", "VI", "VII", "VIII", "IX", "X");

   public static function getrand($num){
       if($num < 1) die("Cannot generate less than one number...");
       for($i =0; $i<$num; $i++){
               $rand = mt_rand(0,9);
               $randnum[$i] = self::$Roman[$rand];
       }
       return $randnum;
   }

}

// To output 15 Roman characters generated from the above method, simply do this
$result = Rand::getrand(15);
print_r($result);

[darkslayer]

Have an array map of 1-10 to their Roman numeral equivalents.

 

Create an empty array to store the generated numbers in.

 

 

Use a for loop to go from 1 to 15 (or 0 to 14 if you are so inclined), each time storing the result from the random lookup in the (previously) empty array you created.

 

For example:

$numerals = array(1 => 'I', 2 => 'II', 3 => 'III', ...etc);
$results = array();

for($i = 1; $i <= 15; $i++) {
$rand = rand(1,10);
$results[] = $numerals[$rand];
}

 

And then functionize it.

 

Can i use a While cicle to generate the 15 random numbers? And to convert the numbers into roman use a "SWITCH CASE" for each number?

 

[smerny]

yes, but why would you want to do that?

[darkslayer]

yes, but why would you want to do that?

 

Is part of an exercise i have to do, and we can only use a While cicle and a "SWITCH CASE" to do it. Do you know how can i do it?

[smerny]

should be able to figure it out easy enough based on whats posted here and a couple simple google searches... should learn from your hw instead of having other people do it for you.

 

in fact... two simple google searches could find you all you need

-php random number

-php switch

[smerny]

if you try and still cant figure it out, then ask

[Psycho]

if you try and still cant figure it out, then ask

 

And SHOW the work you have provided. Explain what you are trying to achieve and how the current results are different.

[chrsm]

Have an array map of 1-10 to their Roman numeral equivalents.

 

Create an empty array to store the generated numbers in.

 

 

Use a for loop to go from 1 to 15 (or 0 to 14 if you are so inclined), each time storing the result from the random lookup in the (previously) empty array you created.

 

For example:

$numerals = array(1 => 'I', 2 => 'II', 3 => 'III', ...etc);
$results = array();

for($i = 1; $i <= 15; $i++) {
$rand = rand(1,10);
$results[] = $numerals[$rand];
}

 

And then functionize it.

 

Can i use a While cicle to generate the 15 random numbers? And to convert the numbers into roman use a "SWITCH CASE" for each number?

 

Yes. I won't provide the whole set of code, but here's some psuedocode for you:

 

results = array();
i = 1;
while(i <= 15) {
switch(i) {
	case 1:
		results[] = 'I';
	break;

	case 2: ...etc
}
}