PHP shuffle()

The shuffle() function randomizes the indexes of the elements in a given array.

Syntax

shuffle($array)

The shuffle() function has only one parameter:

• $array: Specifies the array to randomize.

The shuffle() function returns an array with randomized elements.

Example

The following example uses the shuffle() function to randomize an array of numbers:

<?php
$numArray = array(1,2,3,4,5,6,7);

shuffle($numArray);
print_r($numArray);
?>

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The example will result in an output similar to the following:

Array ( [0] => 2 [1] => 6 [2] => 3 [3] => 4 [4] => 1 [5] => 5 [6] => 7 )

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Codebyte Example

This example is runnable and demonstrates a simple lottery randomizer which uses the shuffle() function:

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