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.

示範 1.shuffle() example

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

備注:由PHP 4.2.0 始,您不需要再使用 srand()mt_srand() 為亂數產生器提供種子,因為這已自動的提供了。

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