Generate an N-digit random number

Question

I want to generate a 6 digit random number using the PHP mt_rand() function.

I know the PHP mt_rand() function only takes 2 parameters: a <

Answer 1

If the first member nunmber can be zero, then you need format it to fill it with zeroes, if necessary.

<?php 
$number = mt_rand(10000,999999);
printf("[%06s]\n",$number); // zero-padding works on strings too
?>

Or, if it can be form zero, you can do that, to:

<?php 
$number = mt_rand(0,999999);
printf("[%06s]\n",$number); // zero-padding works on strings too
?>