cubrid_fetch_field

(PECL CUBRID >= 8.3.0)

cubrid_fetch_field — Returns an object with certain properties

说明

object cubrid_fetch_field ( resource $result [, int $field_offset = 0 ] )

This function returns an object with certain properties of the specific column. The properties of the object are:

name: column name
table: name of the table that the column belongs to
def: default value of the column
max_length: maximum length of the column
not_null: 1 if the column cannot be NULL
unique_key: 1 if the column is an unique key
multiple_key: 1 if the column is a non-unique key
numeri: 1 if the column is numeric
type: the type of the column

参数

result: result comes from a call to cubrid_execute()
field_offset: The numerical field offset. If the field offset is not specified, the next field (that was not yet retrieved by this function) is retrieved. The field_offset starts at 0.

返回值

Object with certain properties of the specific column, when process is successful.

FALSE on failure.

范例

Example #1 cubrid_fetch_field() example


<?php
    $link = cubrid_connect("localhost", 30000, "demodb2", "dba", "");
    if (!$link)
    {
        die('Could not connect.');
    }
    $query = 'SELECT name, address, salary FROM employees';
    $result = cubrid_execute($link, $query);
    if ($result) 
    {
        echo "Fetching column 0 fields: ";
        $meta = cubrid_fetch_field($result, 0);
        if (!$meta) 
        {
            echo "No information available<br />\n";
        }
        echo "<pre>
        max_length:        $meta->max_length
        multiple_key:        $meta->multiple_key
        name:            $meta->name
        not_null:        $meta->not_null
        numeric:        $meta->numeric
        table:            $meta->table
        type:            $meta->type
        default:        $meta->def
        unique_key:        $meta->unique_key
        </pre>";
        cubrid_close_request($result); 
    }
?>

以上例程会输出：

Result:
Fetching column 0 fields: 
        max_length:        13
        multiple_key:    1
        name:            name
        not_null:        1
        numeric:        0
        table:        employees
        type:            STRING
        default:        [noname]
        unique_key:        0