(PHP 5 >= 5.3.0, PHP 7)
实现与 SQLite 3 数据库对接的类。
$destination_db
   [, string $source_dbname = "main"
   [, string $destination_dbname = "main"
  ]] ) : bool$filename
   [, int $flags = SQLITE3_OPEN_READWRITE | SQLITE3_OPEN_CREATE
   [, string $encryption_key = ""
  ]] )$name
   , mixed $step_callback
   , mixed $final_callback
   [, int $argument_count = -1
  ] ) : bool$name
   , mixed $callback
   [, int $argument_count = -1
   [, int $flags = 0
  ]] ) : bool$filename
   [, int $flags = SQLITE3_OPEN_READWRITE | SQLITE3_OPEN_CREATE
   [, string $encryption_key = ""
  ]] ) : void$table
   , string $column
   , int $rowid
   [, string $dbname = "main"
   [, int $flags = SQLITE3_OPEN_READONLY
  ]] ) : resource