mysqli-> error：它仅用于最后一个查询，还是来自查询组的最后一个错误？

Question

I am new to mysqli, and trying to confirm that if I so something like the below, the errno will be set to the last error, if any, and not the error of the last query.

Is this a decent practice or should I be checking for the error in between every query?

Thanks!

$mysqli->autocommit(FALSE);

$mysqli->query("INSERT INTO .....");
$mysqli->query("INSERT INTO .....");
$mysqli->query("INSERT INTO .....");
$mysqli->query("INSERT INTO .....");
$mysqli->query("INSERT INTO .....");

if ( 0==$mysqli->errno ) {
    $mysqli->commit();
} else {
    $mysqli->rollback();
    // Handle error
}

Answer 1

mysqli_errno — Returns the error code for the most recent function call.