Vypisanie vsetkych moznych variacii

    <?

    // Factorial
    function fact($s){
    if ($s==0) return 1;
    else return $fact = $s * fact($s-1);
    }

    $phrase=”Your Phrase Comes Here”;        // tu daj cisla oddelene medzerou...
    // Let’s count the number of words by creating an array
    $words=explode(” “, $phrase);
    $n=count($words);

    // Here comes a loop that creates all possible combinations of array positions
    for ($m=1; $m<=fact($n); $m++)
    {
    $ken = $m-1;
    $f = 1;
    $a = array();
    for($iaz=1; $iaz<=$n; $iaz++)
    {
    $a[$iaz] = $iaz;
    $f = $f*$iaz;
    }
    for($iaz=1; $iaz<=$n-1; $iaz++)
    {
    $f = $f/($n+1-$iaz);
    $selnum = $iaz+$ken/$f;
    $temp = $a[$selnum];
    for($jin=$selnum; $jin>=$iaz+1; $jin–)
    {
    $a[$jin] = $a[$jin-1];
    }
    $a[$iaz] = $temp;
    $ken = $ken%$f;
    }
    $t=1;

    // Let’s start creating a word combination: we have all the necessary positions
    $newphrase=”";

    // Here is the while loop that creates the word combination
    while ($t<=$n)
    {
    $newphrase.=$words[$a[$t]-1].” “;
    $t++;
    }
    // Output of the phrase
    echo $newphrase.”\r\n”;

    }

    ?>

for($jin=$selnum; $jin>=$iaz+1; $jin-–)