function make_captcha() { global $settings; $captcha_string = ""; $captcha_encode = ""; $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; for ($i = 0; $i < 5; $i++) { $captcha_string .= substr($chars, mt_rand(0, strlen($chars) - 1), 1); } for ($i = 0; $i < 31; $i++) { $captcha_encode .= substr($chars, mt_rand(0, strlen($chars) - 1), 1); } $result = mysql_query("INSERT INTO ".DB_PREFIX."captcha (captcha_datestamp, captcha_ip, captcha_encode, captcha_string) VALUES('".time()."', '".USER_IP."', '$captcha_encode', '$captcha_string')"); if ($settings['validation_method'] == "image") { return "\n"; } else { return "".$captcha_string."\n"; } }