shuffle

(PHP 3 >= 3.0.8, PHP 4, PHP 5)

shuffle -- Shuffle an array

Description

bool shuffle ( array &array )

This function shuffles (randomizes the order of the elements in) an array.

Óçìåßùóç: This function assigns new keys for the elements in array. It will remove any existing keys you may have assigned, rather than just reordering the keys.

ÐáñÜäåéãìá 1. shuffle() example

<?php
$numbers
= range(1, 20);
srand((float)microtime() * 1000000);
shuffle($numbers);
foreach (
$numbers as $number) {
    echo
"$number ";
}
?>

Óçìåßùóç: Από την PHP 4.2.0, δεν είναι ανάγκη να κάνετε seed την γεννήτρια τυχαίων αριθμών με την srand() ή την mt_srand() αφού τώρα αυτό γίνεται αυτόματα.

See also arsort(), asort(), ksort(), rsort(), sort(), and usort().