PHP 手册
上一页下一页


ifx_num_fields

(PHP 3 >= 3.0.3, PHP 4, PHP 5)

ifx_num_fields -- Returns the number of columns in the query

说明

int ifx_num_fields ( resource result_id )

After preparing or executing a query, this call gives you the number of columns in the query.

参数

result_id

result_id is a valid resultid returned by ifx_query() or ifx_prepare() (select type queries only!).

返回值

Returns the number of columns in query for result_id, or FALSE on errors.

范例

例 1. ifx_num_fields() Example

<?php
$conn_id = ifx_connect("db", "user", "password");
$res_id = ifx_query("select * from systables", $conn_id);
echo ifx_num_fields($res_id);
?>

参见

ifx_num_rows()



上一页起始页下一页
ifx_nullformat上一级ifx_num_rows