MYSQLI_STORE_RESULT_COPY_DATA

MYSQLI_STORE_RESULT_COPY_DATA — As of PHP 8.1, this constant no longer has any effect. Before PHP 8.1, this constant is used to copy results from the internal mysqlnd buffer into the PHP variables fetched. By default, mysqlnd will use a reference logic to avoid copying and duplicating results held in memory. For certain result sets, for example, result sets with many small rows, the copy approach can reduce the overall memory usage because PHP variables holding results may be released earlier. Available with mysqlnd only. Deprecated as of PHP 8.4.0.

/** @deprecated Constant MYSQLI_STORE_RESULT_COPY_DATA is deprecated since 8.4, as the mysqli_store_result() parameter is unused since 8.1 */
MYSQLI_STORE_RESULT_COPY_DATA = 16;