php教程

cubrid_num_cols

(PECL CUBRID >= 8.3.0)

cubrid_num_colsReturn 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

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