cubrid_num_rows

(PECL CUBRID >= 8.3.0)

cubrid_num_rows — Get the number of rows in the result set

설명

int cubrid_num_rows ( resource $result )

The cubrid_num_rows() function is used to get the number of rows from the query result. You can use it only when the query executed is a select statement. When you want to know such value for INSERT, UPDATE, or DELETE query, you have to use the cubrid_affected_rows() function.

Note: The cubrid_num_rows() function can only be used for synchronous query; it returns 0 when it is used for asynchronous query.

인수

result: result comes from a call to cubrid_execute(), cubrid_query() and cubrid_prepare()

반환값

Number of rows, when process is successful.

0 when the query was done in async mode.

-1, if SQL statement is not SELECT.

FALSE when process is unsuccessful.

예제

Example #1 cubrid_num_rows() example


<?php
$conn = cubrid_connect("localhost", 33000, "demodb", "dba");

$req = cubrid_execute($conn, "SELECT * FROM code");

$row_num = cubrid_num_rows($req);
$col_num = cubrid_num_cols($req);

printf("Row Num: %d\nColumn Num: %d\n", $row_num, $col_num);

cubrid_disconnect($conn);
?>

위 예제의 출력:

Row Num: 6
Column Num: 2

참고

cubrid_execute() - Execute a prepared SQL statement
cubrid_num_cols() - Return the number of columns in the result set
cubrid_affected_rows() - Return the number of rows affected by the last SQL statement