PHP mt_rand() Function

PHP Math Reference : Generate random numbers

Definition and Usage

The mt_rand() function generates a random integer using the Mersenne Twister algorithm.

Example tip: If you want a random integer between 10 and 100 (inclusive), use mt_rand (10,100).

mt_rand();

or

mt_rand(min,max);

Parameter	Description
min	Optional. Specifies the lowest number to return. Default is 0
max	Optional. Specifies the highest number to return. Default is mt_getrandmax()

Return Value:	A random integer between min (or 0) and max (or mt_getrandmax() inclusive). Returns FALSE if max < min
Return Type:	Integer
PHP Version:	4+
PHP Changelog:	PHP 7.1: rand() has been an alias of mt_rand() PHP 5.3.4: Issues an E_WARNING and returns FALSE if max < min. PHP 4.2.0: Random number generator is seeded automatically.

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