How can I send Randomly genarated password to registered users via my email?

[devil420]

I'm using this type of code below. how can my site may have access to my e-mail ? and how can I send e-mails containing passwords to users.?? Plz help.

//code is like this//

if($_POST['submit']=='Register')

{

// If the Register form has been submitted

 

$err = array();

 

if(strlen($_POST['username'])<4 || strlen($_POST['username'])>32)

{

$err[]='Your username must be between 3 and 32 characters!';

}

 

if(preg_match('/[^a-z0-9\-\_\.]+/i',$_POST['username']))

{

$err[]='Your username contains invalid characters!';

}

 

if(!checkEmail($_POST['email']))

{

$err[]='Your email is not valid!';

}

 

if(!count($err))

{

// If there are no errors

 

$pass = substr(md5($_SERVER['REMOTE_ADDR'].microtime().rand(1,100000)),0,6);

// Generate a random password

 

$_POST['email'] = mysql_real_escape_string($_POST['email']);

$_POST['username'] = mysql_real_escape_string($_POST['username']);

// Escape the input data

 

 

mysql_query(" INSERT INTO tz_members(usr,pass,email,regIP,dt)

VALUES(

 

'".$_POST['username']."',

'".md5($pass)."',

'".$_POST['email']."',

'".$_SERVER['REMOTE_ADDR']."',

NOW()

 

)");

 

if(mysql_affected_rows($link)==1)

{

send_mail( '[email protected]',

$_POST['email'],

'sitename - Your New Password',

'Your password is: '.$pass);

 

$_SESSION['msg']['reg-success']='We sent you an email with your new password!';

}

else $err[]='This username is already taken!';

}

 

if(count($err))

{

$_SESSION['msg']['reg-err'] = implode('<br />',$err);

}

 

header("Location: demo.php");

exit;

}

 

 

//but while running it on local server it shows the message "failure" as I have mentioned in the index.php. Plz provite a template codeing to solve the problem//

[phpfreak]

Have you tried just using the mail() function instead of send_mail() ?