maxdb_fetch

Podręcznik PHP
Poprzedni		Następny

Description

Procedural style:

mixed maxdb_fetch_field ( resource result )

Object oriented style (method):

class result {

mixed fetch_field ( void )

}

The maxdb_fetch_field() returns the definition of one column of a result set as an resource. Call this function repeatedly to retrieve information about all columns in the result set. maxdb_fetch_field() returns FALSE when no more fields are left.

Return values

Returns an resource which contains field definition informations or FALSE if no field information is available.

Tabela 1. Object properties

Property	Description
name	The name of the column
max_length	The maximum width of the field for the result set.
type	The data type used for this field
decimals	The number of decimals used (for integer fields)

Example

Przykład 1. Object oriented style


<?php
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");

/* check connection */
if (maxdb_connect_errno()) {
   printf("Connect failed: %s\n", maxdb_connect_error());
   exit();
}

$query = "SELECT name, cno from hotel.customer ORDER BY cno";

if ($result = $maxdb->query($query)) {

   /* Get field information for all columns */
   while ($finfo = $result->fetch_field()) {
 
       printf("Name:     %s\n", $finfo->name);
       printf("Table:    %s\n", $finfo->table);
       printf("max. Len: %d\n", $finfo->max_length);
       printf("Flags:    %d\n", $finfo->flags);
       printf("Type:     %d\n\n", $finfo->type);
   }    
   $result->close();
}

/* close connection */
$maxdb->close();
?>

Przykład 2. Procedural style


<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");

/* check connection */
if (maxdb_connect_errno()) {
   printf("Connect failed: %s\n", maxdb_connect_error());
   exit();
}

$query = "SELECT name, cno from hotel.customer ORDER BY cno";

if ($result = maxdb_query($link, $query)) {

   /* Get field information for all fields */
   while ($finfo = maxdb_fetch_field($result)) {
 
       printf("Name:     %s\n", $finfo->name);
       printf("Table:    %s\n", $finfo->table);
       printf("max. Len: %d\n", $finfo->max_length);
       printf("Flags:    %d\n", $finfo->flags);
       printf("Type:     %d\n\n", $finfo->type);
   }
   maxdb_free_result($result);
}

/* close connection */
maxdb_close($link);
?>

The above examples would produce the following output:

Name:     NAME
Table:
max. Len: 10
Flags:    -1
Type:     2

Name:     CNO
Table:
max. Len: 4
Flags:    -1
Type:     0

Poprzedni	Spis treści	Następny
maxdb_fetch_field_direct	Początek rozdziału	maxdb_fetch_fields

maxdb_fetch_field

Description

Return values

See also

Example