# cubrid_num_cols

(PECL CUBRID >= 8.3.0)

cubrid_num_cols — Return the number of columns in the result set

### 说明

cubrid_num_cols ( resource `$result` ) : int

The cubrid_num_cols() function is used to get the number of columns from the query result. It can only be used when the query executed is a select statement.

### 参数

`result`

  Result.

### 返回值

Number of columns, when process is successful.

`FALSE`, if SQL statement is not SELECT.

### 范例

Example #1 cubrid_num_cols() 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);
    ?>

以上例程会输出：

    Row Num: 6
    Column Num: 2

### 参见

- cubrid_execute() - Execute a prepared SQL statement
- cubrid_num_rows() - Get the number of rows in the result set