array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'tr', ), 'this' => array ( 0 => 'function.rand.php', 1 => 'rand', 2 => 'Generate a random integer', ), 'up' => array ( 0 => 'ref.random.php', 1 => 'Random İşlevleri', ), 'prev' => array ( 0 => 'function.mt-srand.php', 1 => 'mt_srand', ), 'next' => array ( 0 => 'function.random-bytes.php', 1 => 'random_bytes', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/random/functions/rand.xml', ), 'history' => array ( ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); contributors($setup); ?>

rand

(PHP 4, PHP 5, PHP 7, PHP 8)

rand — Generate a random integer

Açıklama

rand(): int
rand(int $min, int $max): int

If called without the optional min, max arguments rand() returns a pseudo-random integer between 0 and getrandmax(). If you want a random number between 5 and 15 (inclusive), for example, use rand(5, 15).

Dikkat

Bu işlev kriptografik olarak güvenilir değerler üretmez ve kriptografik amaçlarla veya döndürülen değerlerin tahmin edilemez olmasını gerektiren amaçlarla kullanılmamalıdır.

Kriptografik olarak güvenilir rastgelelik gerekliyse Random\Randomizer sınıfı Random\Engine\Secure motoru ile kullanılabilir. Basit kullanım durumlarında random_int() ve random_bytes() işlevleri, işletim sisteminin CSPRNG’i tarafından desteklenen kullanışlı ve güvenli bir arayüz sağlar.

Dikkat

This function uses the global Mt19937 (“Mersenne Twister”) instance as the source of randomness and thus shares its state with all other functions using the global Mt19937. Using any of these functions advances the sequence for all the other functions, regardless of scope.

Generating repeatable sequences by seeding mt_srand() or srand() with a known value will also yield repeatable output from this function.

Prefer using Random\Randomizer methods in all newly written code.

Bilginize: Prior to PHP 7.1.0, getrandmax() was only 32767 on some platforms (such as Windows). If you require a range larger than 32767, specifying min and max will allow you to create a range larger than this, or consider using mt_rand() instead.

Bilginize: As of PHP 7.1.0, rand() uses the same random number generator as mt_rand(). To preserve backwards compatibility rand() allows max to be smaller than min as opposed to returning false as mt_rand().

Bağımsız Değişkenler

min

The lowest value to return (default: 0)

max

The highest value to return (default: getrandmax())

Dönen Değerler

A pseudo random value between min (or 0) and max (or getrandmax(), inclusive).

Sürüm Bilgisi

Sürüm: Açıklama
7.2.0 rand() has received a bug fix for a modulo bias bug. This means that sequences generated with a specific seed may differ from PHP 7.1 on 64-bit machines.
7.1.0 rand() has been made an alias of mt_rand().

Örnekler

Örnek 1 rand() example

<?php
echo rand(), "\n";
echo rand(), "\n";

echo rand(5, 15), "\n";
?>

Yukarıdaki örnek şuna benzer bir çıktı üretir:

7771
22264
11

Notlar

Uyarı

min max range must be within the range getrandmax(). i.e. abs(max - min) <= getrandmax(). Otherwise, rand() may return poor-quality random numbers.

Ayrıca Bakınız