For nefarious purposes of my own (actually to make non-predictable unique keys for a db table 8-) I'm doing the following to generate random 25-character strings:
my @chars=("A".."Z","a".."z",0..9);
my $key = join("", @chars[ map { rand @chars } ( 1 .. 25 ) ]);
How likely is this to ever come up with the same 25 char string more than once? Can I realistically treat this as a non-repeating random function?
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|