I need to be able to pull a random value out of my array, let's assume i have array with 100 values, how can i pull randomly 5 values out of this array?
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Might want to check this out if the quality of the pseudo-randomness is important: cod.ifies.com/2008/05/….ESRogs– ESRogs2009-09-30 23:25:27 +00:00Commented Sep 30, 2009 at 23:25
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5 Answers
Try this:
$data = range(1, 100);
$results = array_rand($data, 5);
print_r($results);
1 Comment
Scott C Wilson
Note that in PHP 5.2.10 and up this no longer works. You need to add shuffle to get randomness.
with array_rand(), produced array will always be ordered
$results[0] < $results[1] < $results[2] < $results[3] < $results[4]
if you want it to be unordered, after array_rand(), you can use shuffle() function
$data = range(1, 100);
$results = array_rand($data, 5);
shuffle($result);
print_r($results);
Comments
You are correct.
according to https://www.php.net/manual/en/function.array-rand.php
you can do:
<?php
$input = array("Neo", "Morpheus", "Trinity", "Cypher", "Tank");
$rand_keys = array_rand($input, 2);
echo $input[$rand_keys[0]] . "\n";
echo $input[$rand_keys[1]] . "\n";
?>
Comments
actually I just found array_rand(); maybe that?
Comments
can this be done with repeating the echo or print command ( echo $input[$rand_keys[0]] . "\n";
)
1 Comment
Lizz
This doesn't talk about the user's own array but instead a random function