Random password generation

divyac · #1 June 16th, 2009, 12:20 PM

I want to generate password randomly and send to mysql database using PHP..i have got the following function for generating password but doesn't know how to incorporate in my registration form and where to call that function and update password field in database..please help me..

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    function generatePassword ( $length = 8 ) {

    // start with a blank password

    $password = “”;
 
    // define possible characters

    $possible = “0123456789abcdefghijkmnpqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ!@#$%^&*”;
 
    // set up a counter

    $i = 0;
 
    // add random characters to $password until $length is reached

    while ($i < $length) {

    // pick a random character from the possible ones

    $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
 
    // we don’t want this character if it’s already in the password

    if (!strstr($password, $char)) {

    $password .= $char;

    $i++;

    }

    }

    // done!

    return $password;

    }

where should i call this function generatePassword????

hsriat · #2 June 16th, 2009, 03:53 PM

Keep this function at the bottom of your PHP script, or in some other dedicated .php file for this function and include that PHP script in your present script.

Then use this function like

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 $new_password = generatePassword (10); //whatever length

$sql = mysql_query("INSERT INTO ..... .... (`password`, ... ... ...) VALUES ($new_password, ... ... ...)")

Markus · #3 June 16th, 2009, 05:18 PM

You could just use one of the built in random functions or hash functions.

divyac · #4 June 17th, 2009, 06:44 AM

thank hsriat..its working.... :)

Random password generation

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