PHP - mt_rand

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Metóda - mt_rand

(PHP 4, PHP 5, PHP 7)

Generates pseudo-random numbers using "Mersenne Twister":https://en.wikipedia.org/…enne_Twister method.

Warning: This function does NOT generate cryptographically secure random numbers! If you need to use random-generated numbers for cryptographic operations, use random_int(), random_bytes() or openssl_random_pseudo_bytes() instead!

If the interval between $max and $min is larger than mt_randmax() (max - min > mt_randmax()), the generator may return poorer random numbers than expected.

The number generating interval is inclusive.

Procedurálne

• function mt_rand (int $min, int $max) : int
• function mt_rand (int $min, int $max) : int

Parametre

Názov	Dátový typ	Predvolená hodnota	Popis
$min	int	0	The lowest value that can be generated (inclusive).
$max	int	mt_randmax()	The highest value that can be generated (inclusive).

Mávratovej hodnoty

Vracia: int

A pseudo-random integer between $min and $max. If $min is greater than $max, false is returned.

Príklady

Getting a random number between 0 and 100:

<?php
    echo mt_rand (0, 100);
?>