append('error', $lang['plugin']['accessibleantispam']['error']); } return $ret; } function plugin_aaspam_comment_form() { // we get a random arithmetic operation // between sum, subtraction and multiplication; // we intentionally left out division because // it can lead to situations like division by zero // or floating point numbers $myop = array_rand($ops=array('+','-','*')); $op=$ops[$myop]; // we get two random integers between 1 and 10 $v1 = mt_rand(1, 10); // we rand $v2 until it differs from $v1 // (otherwise result for subtractions is zero) while (($v2 = mt_rand(1, 10))==$v1); // if operation is subtraction // the higher number must always come first // or you'll get a negative integer if ($v2>$v1 && $op=='-') { $tmp = $v1; $v1 = $v2; $v2 = $tmp; } // execute the operation switch($op) { case '+' : $v = $v1+$v2; break; case '-' : $v = $v1-$v2; break; case '*' : $v = $v1*$v2; break; } sess_add('aaspam', $v); // load plugin strings // they're located under plugin.PLUGINNAME/lang/LANGID/ $lang = lang_load('plugin:accessibleantispam'); $langstrings =& $lang['plugin']['accessibleantispam']; // get the correct question depending on the operation switch($op) { case '+' : $question = $langstrings['sum']; break; case '-' : $question = $langstrings['sub']; break; case '*' : $question = $langstrings['prod']; break; } // format the question with numbers at the proper positions $question = sprintf($question, $v1, $v2); // echoes the question and the form part echo <<{$lang['plugin']['accessibleantispam']['prefix']} $question (*)

STR; } ?>