Return the number of columns in the result set

cubrid_num_fields

(PECL CUBRID >= 8.3.0)

cubrid_num_fieldsReturn the number of columns in the result set

說明

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.

參數

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.

範例

示例 #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);
?>

以上例程會輸出:

Row Num: 6
Column Num: 2

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