/**
* Sanitize the given key/value pair, passing any error to $errs if given.
*
* @param string $key The key to reference the current value in the defaults array.
* @param mixed $value The value to be sanitized.
* @param string[] $errs The array of errors, which will be appended with any errors found.
*
* @return mixed The sanitized value, falling back to the current default value when invalid value given.
*/
public static function sanitizeParameter($key, $value, &$errs = null)
{
// all sanitize methods must be in the following form: sanitize<UpperCamelCaseKey>
$funct = $key;
$funct[0] = strtoupper($funct[0]);
$funct = 'sanitize' . preg_replace_callback('/_([a-z])/', array(__CLASS__, 'secondCharToUpper'), $funct);
$callable = array(__CLASS__, $funct);
// avoid looking for method beforehand unless we're running in debug mode -- expensive call
if (DG_Logger::logEnabled() && !method_exists(__CLASS__, $funct)) {
DG_Logger::writeLog(DG_LogLevel::Error, __('Attempted to call invalid function: ', 'document-gallery') . implode('::', $callable), true);
}
// call param-specific sanitization
$ret = call_user_func_array($callable, array($value, &$err));
// check for error and return default
if (isset($err)) {
$defaults = DG_Gallery::getOptions();
$ret = $defaults[$key];
if (!is_null($errs)) {
$errs[$key] = $err;
}
}
return $ret;
}
