public function DatabaseConnection::escapeAlias

public DatabaseConnection::escapeAlias($field)

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.

File

includes/database/database.inc, line 954
Core systems for the database layer.

Class

DatabaseConnection
Base Database API class.

Code

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

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https://api.drupal.org/api/drupal/includes!database!database.inc/function/DatabaseConnection::escapeAlias/7.x