GENERATE PASSWORDS

<?php
function generatePassword ($length = 7)
  {

    // start with a blank password
    $password = "";

  
    $possible = "234678951abcdefghijklmnopqrstuvqxyz";

    // we refer to the length of $possible a few times, so let's grab it now
    $maxlength = strlen($possible);
 
    // check for length overflow and truncate if necessary
    if ($length > $maxlength) {
      $length = $maxlength;
    }
   
    // set up a counter for how many characters are in the password so far
    $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, $maxlength-1), 1);
       
      // have we already used this character in $password?
      if (!strstr($password, $char)) {
        // no, so it's OK to add it onto the end of whatever we've already got...
        $password .= $char;
        // ... and increase the counter by one
        $i++;
      }

    }

    // done!
    return $password;

  }
 
$pwd=generatePassword();
if(isset($_REQUEST['submit']))
{
   
    $gen=$_REQUEST['gen'];
    for($i=0;$i<$gen;$i++)
    {
        echo $pwd=generatePassword()."<br>";
    }
}


?>
<form name="form" method="get" action="">

<input type="text" name="gen" value="" >
<input type="submit" name="submit">
</form>