php rand vs mt_rand code example
Example 1: php rand int
random_int ( int $min , int $max );
Example 2: php rand vs mt_rand
// Since PHP7.1 rand() has become an alias of mt_rand()
// mt_rand() was supposed to be faster and more random than rand() in older PHP Versions
// That means you can use rand() instead of mt_rand() on newer Versions