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Session::dropSchema — Drop a schema
$schema_name
   ) : boolDrop a schema (database).
schema_nameName of the schema to drop.
   TRUE if the schema is dropped, or FALSE if it does not exist
   or can't be dropped. 
  
   An E_WARNING level error is generated if the 
   schema does not exist.
  
Example #1 mysql_xdevapi\Session::dropSchema() example
<?php
$session = mysql_xdevapi\getSession("mysqlx://user:password@localhost");
$session->dropSchema("addressbook");
$session->close();
?>