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

Opis

Styl proceduralny

maxdb_fetch_fields ( resource $result ) : mixed

Styl obiektowy

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.

Zwracane wartości

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)

Przykłady

Przykład #1 Styl obiektowy


<?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();
?>

Przykład #2 Styl proceduralny


<?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);
?>

Powyższy przykład wyświetli coś podobnego do:

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

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

Zobacz też:

maxdb_num_fields() - Get the number of fields in a result
maxdb_fetch_field() - Returns the next field in the result set
maxdb_fetch_field_direct() - Fetch meta-data for a single field

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