Php/docs/function.cubrid-num-cols

• PHP Manual
• CUBRID 函数
• Return the number of columns in the result set

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