# cubrid_num_fields

(PECL CUBRID >= 8.3.0)

cubrid_num_fields — Return the number of columns in the result set

### 说明

cubrid_num_fields ( resource `$result` ) : int

This function returns the number of columns in the result set, on success, or it returns FALSE on failure.

### 参数

`result`

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

### 返回值

Number of columns, on success.

-1 if SQL sentence is not SELECT.

`FALSE` when process is unsuccessful.

### 范例

Example #1 cubrid_num_fields() example

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

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

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