Random number in range [min - max] using PHP
Solution 1:
<?php
$min=1;
$max=20;
echo rand($min,$max);
?>
Solution 2:
In a new PHP7 there is a finally a support for a cryptographically secure pseudo-random integers.
int random_int ( int $min , int $max )
random_int — Generates cryptographically secure pseudo-random integers
which basically makes previous answers obsolete.