Overview
KB
Technical FAQ
PHP Manual
CSS2 Manual
HTML Manual
JS Guide
JS Reference
PhpDock Manual
Nu-Coder Manual
PhpExpress Manual
PHP Joomla
Development
Learn PHP
 
<lcg_valuemt_rand>
^Random FunctionsLast updated: Mon, 26 Oct 2026

mt_getrandmax

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

mt_getrandmax — Show largest possible random value

Description

function mt_getrandmax(): int

Returns the maximum value that can be returned by a call to mt_rand().

Parameters

This function has no parameters.

Return Values

Returns the maximum random value returned by a call to mt_rand() without arguments, which is the maximum value that can be used for its max parameter without the result being scaled up (and therefore less random).

See Also

  • mt_rand() - Generate a random value via the Mersenne Twister Random Number Generator
  • mt_srand() - Seeds the Mersenne Twister Random Number Generator
  • getrandmax() - Show largest possible random value


<lcg_valuemt_rand>
^Random FunctionsLast updated: Mon, 26 Oct 2026