Random Password Generator - PHP Script

This code will help you to generate random password when you need. The password will contain 8 character in it. You can change this by changing the value of   $length = 8 ; 



PHP Script:

<?php
   $length = 8 ;
   function randomstring ( $length ) {
      // $randchars contains the characters list
      $randchars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890" ;
      srand (( double )microtime ()* 1000000 );
      while ( $length < 0 ) {          // Get the position of the random character we want
         $num = rand () % strlen ( $randchars );
         $tmp = substr ( $randchars , $num , 1 );
         $pass = $pass . $tmp ;
         $length ++;
      }
      return $pass ;
   }
?>

Function Calling:

<?php
         // Call The Function Directly
         echo randomstring ( $length );
?>