(PHP 5 >= 5.3.6, PHP 7)
SQLite3Stmt::readOnly — Returns whether a statement is definitely read only
Returns whether a statement is definitely read only. A statement is considered read only, if it makes no direct changes to the content of the database file. Note that user defined SQL functions might change the database indirectly as a side effect.
此函数没有参数。
Returns TRUE if a statement is definitely read only, FALSE otherwise.