cubrid_num_fields

(PECL CUBRID >= 8.3.0)

cubrid_num_fields — Returns the number of columns in the result set

说明

int cubrid_num_fields ( resource $result )

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()

返回值

Number of columns, on success.

-1 if SQL sentence is not SELECT.

范例

Example #1 cubrid_num_fields() example


<?php
    $link = cubrid_connect("localhost", 30000, "demodb2", "dba", "");
    if (!$link)
    {
        die('Could not connect.');
    }
    $query = 'SELECT id, name, address, salary FROM employees';
    $result = cubrid_execute($link, $query);
    if ($result) 
    {
        $n = cubrid_num_fields($result);
        echo "The resultset contains ".$n. " fields: ";
        for ($i = 0; $i < $n; $i++)
            echo cubrid_field_name($result, $i)." ";
        
        cubrid_close_request($result); 
    }
?>

以上例程会输出：

Result:
The resultset contains 4 fields: id name address salary