PHP kézikönyv
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# maxdb_fetch_fields

(PECL)

maxdb_fetch_fields

(no version information, might be only in CVS)

result->fetch_fields -- Returns an array of resources representing the fields in a result set

## Description

Procedural Style:

mixed maxdb_fetch_fields ( resource result )

Object oriented style (method):

class result {
mixed fetch_fields ( void )
}

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.

## Return values

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

Táblázat 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)

## See also

maxdb_num_fields() maxdb_fetch_field() maxdb_fetch_field_direct()

## Example

Példa 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 */ $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(); ?>`

Példa 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 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); ?>`

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

Előző | Tartalom | Következő
maxdb_fetch_field | Fel | maxdb_fetch_lengths