mysqli_fetch_lengths result->lengths Returns the lengths of the columns of the current row in the result set Procedural style: arraymysqli_fetch_lengths mysqli_resultresult Object oriented style (property): mysqli_result arraylengths The mysqli_fetch_lengths function returns an array containing the lengths of every column of the current row within the result set represented by the result parameter. If successful, a numerically indexed array representing the lengths of each column is returned or &false; on failure. &reftitle.returnvalues; An array of integers representing the size of each column (not including any terminating null characters). &false; if an error occurred. mysqli_fetch_lengths is valid only for the current row of the result set. It returns &false; if you call it before calling mysqli_fetch_row/array/object or after retrieving all rows in the result. &reftitle.examples; query($query)) { $row = $result->fetch_row(); /* display column lengths */ foreach ($result->lengths as $i => $val) { printf("Field %2d has Length %2d\n", $i+1, $val); } $result->close(); } /* close connection */ $mysqli->close(); ?> ]]> $val) { printf("Field %2d has Length %2d\n", $i+1, $val); } mysqli_free_result($result); } /* close connection */ mysqli_close($link); ?> ]]> &example.outputs;