maxdb_fetch_fields

maxdb_result::fetch_fields

(PECL maxdb >= 1.0)

maxdb_fetch_fields -- maxdb_result::fetch_fields — Returns an array of resources representing the fields in a result set

Beschreibung

Prozeduraler Stil

maxdb_fetch_fields ( resource $result ) : mixed

Objektorientierter Stil

maxdb_result::fetch_fields ( void ) : mixed

This function serves an identical purpose to the maxdb_fetch_field() function with the single difference that, instead of returning one resource at a time for each field, the columns are returned as an array of resources.

Rückgabewerte

Returns an array of resources which contains field definition information or FALSE if no field information is available.

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)

Beispiele

Beispiel #1 Objektorientierter Stil

<?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 */
   $finfo = $result->fetch_fields();

   foreach ($finfo as $val) {
       printf("Name:     %s\n", $val->name);
       printf("Table:    %s\n", $val->table);
       printf("max. Len: %d\n", $val->max_length);
       printf("Flags:    %d\n", $val->flags);
       printf("Type:     %d\n\n", $val->type);
   }
   $result->close();
}

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

Beispiel #2 Prozeduraler Stil

<?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 columns */
   $finfo = maxdb_fetch_fields($result);

   foreach ($finfo as $val) {
       printf("Name:     %s\n", $val->name);
       printf("Table:    %s\n", $val->table);
       printf("max. Len: %d\n", $val->max_length);
       printf("Flags:    %d\n", $val->flags);
       printf("Type:     %d\n\n", $val->type);
   }
   maxdb_free_result($result);
}

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

Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:

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

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

Siehe auch