Generating Unique ID

[eluser]Randy Casburn[/eluser]
I know Mike, you being the hero and all, this is sooo much easier:

Code:

function make_unique($filename = NULL) {
  if ($filename !== NULL) {
    $this->load->helper('string');
    $unique = FALSE;
    while ($unique === FALSE) {
      if ($this->db->update('files', array('id' => random_string('alnum', 5)), array('filename' => $filename))) {
        $unique = TRUE;
      }
    }
    return TRUE;
  }
  return FALSE;
}

than this:

Code:

substr(...);

I bow to your prowess...