drupal_valid_http_host

Versions
mediamosa-21
drupal_valid_http_host($host)

Validate that a hostname (for example $_SERVER['HTTP_HOST']) is safe.

Return value

TRUE if only containing valid characters, or FALSE otherwise.

Code

includes/bootstrap.inc, line 536

<?php
function drupal_valid_http_host($host) {
  return preg_match('/^\[?(?:[a-zA-Z0-9-:\]_]+\.?)+$/', $host);
}
?>