(PHP 4 >= 4.0.0)
array_rand -- Pick one or more random entries out of an array
Description
mixed array_rand (array input [, int num_req])
array_rand() is rather useful when you want to pick one or more random entries out
of an array. It takes an input array and an optional argument
num_req which specifies how many entries you want to pick - if not specified, it defaults
to 1.
If you are picking only one entry, array_rand() returns the key for a random entry.
Otherwise, it returns an array of keys for the random entries. This is done so that you can pick
random keys as well as values out of the array.
Don't forget to call srand() to seed the random
number generator.
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Example 1. array_rand() example
srand ((float) microtime() * 10000000);
$input = array ("Neo", "Morpheus", "Trinity", "Cypher", "Tank");
$rand_keys = array_rand ($input, 2);
print $input[$rand_keys[0]]."\n";
print $input[$rand_keys[1]]."\n";
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