eregi

[Anon]

If I wanted to make sure that $password contained only letters and numbers, could'nt I just write:

<?
if (eregi ("^{[:alphanum:]$",} $password))
{echo "password ok";}
else {echo "password not ok";}
?>

[Anon]

Not quite: you'll only be checking if $password contains a single letter or number.

<?
if (eregi ("^{[:alphanum:]+$",} $password))
{echo "password ok";}
else {echo "password not ok";}
?>

I can't remember - is [:alphanum:] a recognised ereg class?

<?
if (preg_match("/^{[a-z0-9]+$/i",} $password))
{echo "password ok";}
else {echo "password not ok";}
?>

"If at first you don't succeed - delegate the job to someone else and blame them"

[Anon]

Thanks, the preg_match seems to work