CODEWITHSUNDEEP
phparrayssortingrandom
James Clifton
James Clifton

Reputation: 175

Generating random numbers in order

Is there a way to get random numbers from a list of numbers and then put them in order?

For example if I want 4 numbers between 1 and 12 how can I get these numbers in ascending order?

EDIT: I need the numbers to be unique.

Upvotes: 0

Views: 3673

Answers (4)

Max Hudson
Max Hudson

Reputation: 10206

Store the random values in an array and then use PHP's sort function: http://php.net/manual/en/function.sort.php

$numbers = range(1, 12); 
shuffle($numbers); 
$numbers=array_slice($numbers, 0, 4); 
sort($numbers);

Upvotes: 1

fedmich
fedmich

Reputation: 5381

Try this up, adding to array, then sorting later on.

foreach and range would be easier to read, so easier to maintain :)

<?php
$b1 = 1;
$b2 = 12;

$nums = array();
foreach(range(1,4) as $i){
   $nums[] = rand($b1,$b2);
}
sort($nums);
var_dump($nums);

For more info about sort http://php.net/manual/en/function.sort.php

Upvotes: 0

Dan Kanze
Dan Kanze

Reputation: 18595

<?
$y=array();
for($i=0;$i<4;$i++){$y[$i]=mt_rand(1,12);}
sort($y);
?>

Upvotes: 0

Allen Chak
Allen Chak

Reputation: 1950

$output = array();
for($i=1;$i<=4;$i++){
   $output[] = mt_rand(1, 12);
}
sort($output);

Upvotes: 3

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