function _text_captcha_generate_nonsense_word in CAPTCHA 5.3

Same name and namespace in other branches

1. 6 text_captcha/text_captcha.user.inc \_text_captcha_generate_nonsense_word()

function for generating a random nonsense word of a given number of characters

1 call to _text_captcha_generate_nonsense_word()

_text_captcha_generate_words in text_captcha/text_captcha.module

function for generating an array of words

File

text_captcha/text_captcha.module, line 104

Implementation of a text based CAPTCHA.

Code

function _text_captcha_generate_nonsense_word($characters) {
  $vowels = "bcdfghjklmnpqrstvwxyz";
  $consonants = "aeiou";
  $vowel_max = strlen($vowels) - 1;
  $consonant_max = strlen($consonants) - 1;
  $word = '';
  $o = mt_rand(0, 1);

  // randomly start with vowel or consonants
  for ($i = 0; $i < $characters; ++$i) {
    if (($i + $o) % 2) {
      $word .= $consonants[mt_rand(0, $consonant_max)];
    }
    else {
      $word .= $vowels[mt_rand(0, $vowel_max)];
    }
  }
  return $word;
}