Passwords

Random alphanumeric password

Type:	code fragment
Added by:	bto
Entered:	18/08/2004
Last modified:	08/12/2003
Rating:	(3 votes)
Views:	4878

A simple function which returns an autogenerated random alphanumerical password with the specified length.

<?php
function NewPassword($len = 8)

                            {

                                $chars=array(

                                             "A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P",

                                             "Q","R","S","T","U","V","W","X","Y","Z", //upper-case

                                             "a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p",

                                             "q","r","s","t","u","v","w","x","y","z", //lower-case

                                             "0","1","2","3","4","5","6","7","8","9"  //numbers

                                            );

                            

                                srand((float) microtime() * 10000000);

                                $array=array_rand($chars, $len);

                            

                                $password="";

                                foreach ($array as $key => $val)

                                    $password.=$chars[$val];

                            

                                return $password;

                            }
?>

Usage Example

$password=NewPassword(6) //A 6 character length password

                            $password=NewPassword() //A default length password

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