function _generateHash($values, $locked = null, $magic_life = FB_LOCK_FORM_FIELDS_MAGIC_LIFE_ANY)
{
global $_SERVER;
// < 4.1.0
assert('is_array($values)');
assert('is_integer($magic_life)');
if (!$locked) {
$locked = array_keys($values);
}
assert('is_array($locked)');
$secret = FB_LOCK_FORM_FIELDS_SECRET;
if ($magic_life & FB_LOCK_FORM_FIELDS_MAGIC_LIFE_SCRIPT) {
if (isset($_SERVER['PHP_SELF'])) {
$secret .= $_SERVER['PHP_SELF'];
} elseif (isset($_SERVER['SCRIPT_FILENAME'])) {
$secret .= $_SERVER['SCRIPT_FILENAME'];
}
}
if ($magic_life & FB_LOCK_FORM_FIELDS_MAGIC_LIFE_SESSION) {
$secret .= session_id();
}
if (isset($this)) {
assert('is_object($this)');
assert('method_exists($this, "addMagic")');
$secret .= $this->addMagic($magic_life);
} else {
$secret .= fbHTML_LockFormFields::addMagic($magic_life);
}
foreach ($locked as $k) {
if ($k == FB_LOCK_FORM_FIELDS_HASH_NAME) {
// skip if there is hash
continue;
}
// serialize allows us to handle arrays (such as multi-selects)
$secret .= '&' . $k . '=' . serialize($values[$k]);
}
return md5($secret);
}
