mt_rand() – Generating Better Random Numbers in PHP

PHP's mt_rand() function generates a random integer between a specified minimum and maximum value, offering a faster and more reliable alternative to the older rand() which relies on the libc random number generator.

Parameters

min (optional): the lowest integer to return (default 0).

max (optional): the highest integer to return (default is mt_getrandmax()).

Return value

The function returns an integer between min (or 0) and max (or mt_getrandmax()), inclusive.

Example

<?php
echo mt_rand();
echo "
";
echo mt_rand();
echo "
";
echo mt_rand(5, 15);
echo "
";
?>

Sample Output

1604716014
1478613278
6