PHP - random_int

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Metóda - random_int

(PHP 7)

random_int() generates a pseudo-random integer using a cryptographically secure method.

The interval in which the generated numbers will be can be set using the $max and $min parameters, and is inclusive.

The function uses the same entropy sources as random_bytes().

Procedurálne

• function random_int () : int

Parametre

Žiadne

Mávratovej hodnoty

Vracia: int

A cryptographically secure random integer.

Príklady

Choosing the winner from a list of participants:

<?php
    $participants = ["John Brown", "James Smith", "Thomas Raspberry"];
    $winner = random_int(0, count($participants) - 1);
    echo "Winner of Ericsson T20i is: " . $participants[$winner];
?>

Generating a lottery draw:

<?php
    $winningNumbers = [];
    for ($i = 0; $i < 5; $i++) {
        $number = 0;
        while ($number == 0 || in_array($number, $winningNumbers)) {
            $number = random_int(1, 69);
        }
        array_push($winningNumbers, $number);
    }

    echo "The powerball winning numbers are: " . join(" ", $winningNumbers)
        . ". Powerball: " random_int(1, 26);
?>