public function DatabaseConnection::escapeAlias

Escapes an alias name string.

Force all alias names to be strictly alphanumeric-plus-underscore. In contrast to DatabaseConnection::escapeField() / DatabaseConnection::escapeTable(), this doesn't allow the period (".") because that is not allowed in aliases.

Return value

The sanitized field name string.

Archivo

drupal-7.x/includes/database/database.inc, line 951

Core systems for the database layer.

Class

DatabaseConnection

Base Database API class.

Código

public function escapeAlias($field) {
  return preg_replace('/[^A-Za-z0-9_]+/', '', $field);
}