gning.com/2005/09/29/generate-a-random-number-using-php

First, here's the function:

function random_num($n=5)
{

return

Sometimes you need to generate unique randon numbers if you want to assign IDs to your members or assign unique values to your shopping cart items. Here I'm just citing to reason whereas it depends on you for what purpose you'd like to generate a random number in your PHP scripts. I have written a small function that takes one argument. This argument tells the function how many digits you want in the generated number.

For a live example of the article, go to http://www.aboutwebdesigning.com/2005/09/29/generate-a-random-number-using-php

First, here's the function:

function random_num($n=5)
{

return

ere I'm just citing to reason whereas it depends on you for what purpose you'd like to generate a random number in your PHP scripts. I have written a small function that takes one argument. This argument tells the function how many digits you want in the generated number.

For a live example of the article, go to http://www.aboutwebdesigning.com/2005/09/29/generate-a-random-number-using-php

First, here's the function:

function random_num($n=5)
{

return

small function that takes one argument. This argument tells the function how many digits you want in the generated number.

For a live example of the article, go to http://www.aboutwebdesigning.com/2005/09/29/generate-a-random-number-using-php

First, here's the function:

function random_num($n=5)
{

return

of the article, go to http://www.aboutwebdesigning.com/2005/09/29/generate-a-random-number-using-php

First, here's the function:

function random_num($n=5)
{

return

gning.com/2005/09/29/generate-a-random-number-using-php

First, here's the function:

function random_num($n=5)
{

return rand(0, pow(10, $n));
}

If you send no argument to the random_num() function, it generates a 5-digit random number. This is how we use it:

echo random_num(); gave 96161 when tested and
echo random_num(7); gave 5983582 when tested

This function uses the PHP math function pow() to get the number of digits we want. The function pow() calculates the power of a number like say 10 raised to the power 5. In math we write it like 10 Exp 5. Basically, the real rand() function takes 2 arguments: the lower limit and the upper limit. So if you want to generate a random