Fix GH-13984: Buffer size is now checked before memcmp (#13991)

Fixed an issue where a buffer overflow occurred when a string shorter than
`:memory:` was passed as the db name of pdo_sql

Fix GH-13984: Buffer size is now checked before memcmp (#13991)

Fixed an issue where a buffer overflow occurred when a string shorter than
`:memory:` was passed as the db name of pdo_sqlite.

fixed #13984
closes #13991

show more ...