Compzone.Org :: Podręcznik PHP :: fbsql_fetch_field

Podręcznik PHP
Poprzedni		Następny

fbsql_fetch_field

(PHP 4 >= 4.0.6, PHP 5)

fbsql_fetch_field -- Get column information from a result and return as an object

Opis

object fbsql_fetch_field ( resource result [, int field_offset] )

Returns an object containing field information.

fbsql_fetch_field() can be used in order to obtain information about fields in a certain query result. If the field offset isn't specified, the next field that wasn't yet retrieved by fbsql_fetch_field() is retrieved.

The properties of the object are:

name - column name
table - name of the table the column belongs to
max_length - maximum length of the column
not_null - 1 if the column cannot be NULL
type - the type of the column

Przykład 1. fbsql_fetch_field() example

<?php 

                fbsql_connect($host, $user, $password)

                    or die("Could not connect");

                $result = fbsql_db_query("database", "select * from table")


                    or die("Query failed");
# get column metadata
$i = 0;


                while ($i < fbsql_num_fields($result)) {


                    echo "Information for column $i:<br />\n";


                    $meta = fbsql_fetch_field($result);


                    if (!$meta) {

                        echo "No information available<br />\n";


                    }

                    echo "<pre>

                max_length:   $meta->max_length

                name:         $meta->name

                not_null:     $meta->not_null

                table:        $meta->table

                type:         $meta->type

                </pre>";

                    $i++;

                }
fbsql_free_result($result);

                ?>