Random AlphaNumeric String

[GroundZeroStudios]

All I need to know is how to come up with a random alphanumeric string 24 characters long. Such as Dj53dljgdg97dgfhgf879ngf. It doesn't need to contain upper-case letters.

 

*Alphanumeric means containing letters and numbers

[JBS103]

This should work. No clue if it would be considered "good practice" or not.

$var = substr(md5(mt_rand()), ; 
//or
$var = substr(md5(time()), ;

[Lytheum]

function get_rand_id($length)
{
 if($length>0) 
 { 
 $rand_id="";
  for($i=1; $i<=$length; $i++)
  {
  mt_srand((double)microtime() * 1000000);
  $num = mt_rand(1,36);
  $rand_id .= assign_rand_value($num);
  }
 }
return $rand_id;
}

 

Usage:

 

$id = get_rand_id(24);
// Returns random 24 character string.

[Barand]

One way is

<?php
$src = 'abcdefghijklmnopqrstuvwxyz1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ';
$len = strlen($src) - 1;

$str = '';

for($i=0; $i<24; $i++) {
    $x = rand(0,$len);
    $str .= $src{$x};
}

echo $str;
?>