Re: [PHP] Regular Expression Help: genreate alphanumeric, 8 chars
Adam -- ...and then Adam i Agnieszka Gasiorowski FNORD said... % ... % How about, % % $password = strtolower(substr(md5(uniqid(time())), 0, 7)); Hey, that's pretty slick. Good one! Gonna have to remember that; it's an excellent trick. Thanks HAND :-D -- David T-G * There is too much animal courage in (play) [EMAIL PROTECTED] * society and not sufficient moral courage. (work) [EMAIL PROTECTED] -- Mary Baker Eddy, Science and Health http://justpickone.org/davidtg/ Shpx gur Pbzzhavpngvbaf Qrprapl Npg! pgp0.pgp Description: PGP signature
[PHP] Regular Expression Help: genreate alphanumeric, 8 chars
Hi, I need to generate a lowercase alphanumeric passwrord thats 8 characters long, has anyone got a function that can do this? Thanks for your help -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Regular Expression Help: genreate alphanumeric, 8 chars
Shaun -- [No need to post twice...] ...and then Shaun said... % % Hi, Hi! % % I need to generate a lowercase alphanumeric passwrord thats 8 characters % long, has anyone got a function that can do this? This isn't really a regular expression question, since you'd use an expression to check if a string matched your requirements but not to generate such a string. A function should be easy: just loop 8 times over spitting out a random char between a and z or 0 and 9 (use rand() to generate a number between 0 and 35 and then map that to the char). % % Thanks for your help Enjoy :-) HTH HAND :-D -- David T-G * There is too much animal courage in (play) [EMAIL PROTECTED] * society and not sufficient moral courage. (work) [EMAIL PROTECTED] -- Mary Baker Eddy, Science and Health http://justpickone.org/davidtg/ Shpx gur Pbzzhavpngvbaf Qrprapl Npg! pgp0.pgp Description: PGP signature
Re: [PHP] Regular Expression Help: genreate alphanumeric, 8 chars
...as in...
?
// Could've been done with ASCII sets, but this way
// you can easily tweak the eligible characters.
$eligible='abcdefghijklmnopqrstuvwxyz0123456789';
$pwdLen=8;
$password='';
for($i=0;$i$pwdLen;$i++) {
$password.=$eligible[rand(0,strlen($eligible))];
}
echo(Your new password: $password\n);
?
Bogdan
David T-G wrote:
Shaun --
[No need to post twice...]
...and then Shaun said...
%
% Hi,
Hi!
%
% I need to generate a lowercase alphanumeric passwrord thats 8 characters
% long, has anyone got a function that can do this?
This isn't really a regular expression question, since you'd use an
expression to check if a string matched your requirements but not to
generate such a string.
A function should be easy: just loop 8 times over spitting out a random
char between a and z or 0 and 9 (use rand() to generate a number between
0 and 35 and then map that to the char).
%
% Thanks for your help
Enjoy :-)
HTH HAND
:-D
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Re: [PHP] Regular Expression Help: genreate alphanumeric, 8 chars
Bogdan --
...and then Bogdan Stancescu said...
%
% ...as in...
%
% ?
% // Could've been done with ASCII sets, but this way
% // you can easily tweak the eligible characters.
% $eligible='abcdefghijklmnopqrstuvwxyz0123456789';
% $pwdLen=8;
% $password='';
% for($i=0;$i$pwdLen;$i++) {
% $password.=$eligible[rand(0,strlen($eligible))];
% }
% echo(Your new password: $password\n);
% ?
Looks good to me. You're too kind; I was going to leave the exercise to
the student to complete :-)
%
% Bogdan
HTH HAND
:-D
--
David T-G * There is too much animal courage in
(play) [EMAIL PROTECTED] * society and not sufficient moral courage.
(work) [EMAIL PROTECTED] -- Mary Baker Eddy, Science and Health
http://justpickone.org/davidtg/ Shpx gur Pbzzhavpngvbaf Qrprapl Npg!
pgp0.pgp
Description: PGP signature
Re: [PHP] Regular Expression Help: genreate alphanumeric, 8 chars
Shaun wrote:
Hi,
I need to generate a lowercase alphanumeric passwrord thats 8 characters
long, has anyone got a function that can do this?
No, but I can write a quick one for you. Can't guarantee the uniqueness
of the password being generated.
function passgen()
{
srand((float) microtime() * 1000);
//Source arrays
$letters = range('a','z');
$digits = range(1,9);
//Get random items from arrays
$char = array_rand($letters, 4);
$num = array_rand($digits, 4);
//Combine the two random items into one array
for ($i = 0; $i 4; ++$i)
{
$ran_char[] = $letters[$char[$i]];
$ran_num[] = $digits[$num[$i]];
}
//build our password
$password = array_unique(array_merge($ran_char, $ran_num));
//randomize it
shuffle($password);
return join(,$password);
}
echo passgen();
?
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Re: [PHP] Regular Expression Help: genreate alphanumeric, 8 chars
David T-G wrote:
Bogdan --
...and then Bogdan Stancescu said...
%
% ...as in...
%
% ?
% // Could've been done with ASCII sets, but this way
% // you can easily tweak the eligible characters.
% $eligible='abcdefghijklmnopqrstuvwxyz0123456789';
% $pwdLen=8;
% $password='';
% for($i=0;$i$pwdLen;$i++) {
% $password.=$eligible[rand(0,strlen($eligible))];
% }
% echo(Your new password: $password\n);
% ?
Looks good to me. You're too kind; I was going to leave the exercise to
the student to complete :-)
How about,
$password = strtolower(substr(md5(uniqid(time())), 0, 7));
Will get you a unique password consisting of 8
rather random lowercase alphanumerics.
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