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Marc Solèr marcsoler

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marcsoler / _shuffle-associtive.php

Last active January 12, 2021 01:27

Shuffle associative array while preserving keys (Fisher–Yates shuffle algorithm)

	<?php

	function fisherYatesShuffleAssoc(&$items, $seed)
	{
	$di = $items;
	@mt_srand($seed);
	$items = array_values($items);
	for ($i = count($items) - 1; $i > 0; $i--)
	{
	$j = @mt_rand(0, $i);