Comments on snippet: 'Generate Random String'

Sverri said on 16/Aug/2010

Mon, 16 Aug 2010 07:00:47 UTC

There is no reason to use a loop. Just shuffle the string and take out the segment you need.

function str_rand($len=10) {
  $shuffled = str_shuffle('0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ');
  return substr($shuffled, 0, $len);
}

stamba said on 23/Dec/2010

Thu, 23 Dec 2010 22:25:59 UTC

I have tested this code to generate 404 32-chars long strings. Lengths of the strings are between 30 and 33 chars. Code that Sverri posted works like a charm! I got all unique strings and they were all 32 chars long.