New and updated in 3.9.0
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functionget_network_by_path()
Retrieves the closest matching network for a domain and path.
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methodwpdb::check_connection()
Checks that the connection to the database is still up. If not, try to reconnect.
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methodwpdb::_do_query()
Internal function to perform the mysqli_query() call.
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methodwpdb::db_connect()
Connects to and selects database.
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Filters the list of incompatible SQL modes to exclude.
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methodwpdb::set_sql_mode()
Changes the current SQL mode, and ensures its WordPress compatibility.