Руководство по PHP
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# mysqli_fetch_fields

(PHP 5)

mysqli_fetch_fields

(no version information, might be only in CVS)

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

## Description

Procedural Style:

mixed mysqli_fetch_fields ( mysqli_result result )

Object oriented style (method):

class mysqli_result {
mixed fetch_fields ( void )
}

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

## Возвращаемые значения

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

Таблица 1. Object properties

Property | Description
--- | ---
name | The name of the column
orgname | Original column name if an alias was specified
table | The name of the table this field belongs to (if not calculated)
orgtable | Original table name if an alias was specified
def | The default value for this field, represented as a string
max_length | The maximum width of the field for the result set.
flags | An integer representing the bit-flags for the field.
type | The data type used for this field
decimals | The number of decimals used (for integer fields)

## Смотрите также

mysqli_num_fields(), mysqli_fetch_field() и mysqli_fetch_field_direct().

## Примеры

Пример 1. Object oriented style
`<?php $mysqli = new mysqli("localhost", "my_user", "my_password", "world"); /* check connection */ if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit(); } $query = "SELECT Name, SurfaceArea from Country ORDER BY Code LIMIT 5"; if ($result = $mysqli->query($query)) { /* Get field information for all columns */ $finfo = $result->fetch_fields(); for ($i=0; $i < count($finfo); $i++) { printf("Name: %s\n", $finfo[$i]->name); printf("Table: %s\n", $finfo[$i]->table); printf("max. Len: %d\n", $finfo[$i]->max_length); printf("Flags: %d\n", $finfo[$i]->flags); printf("Type: %d\n\n", $finfo[$i]->type); } $result->close(); } /* close connection */ $mysqli->close(); ?>`

Пример 2. Procedural style
`<?php $link = mysqli_connect("localhost", "my_user", "my_password", "world"); /* check connection */ if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit(); } $query = "SELECT Name, SurfaceArea from Country ORDER BY Code LIMIT 5"; if ($result = mysqli_query($link, $query)) { /* Get field information for all columns */ $finfo = mysqli_fetch_fields($result); for ($i=0; $i < count($finfo); $i++) { printf("Name: %s\n", $finfo[$i]->name); printf("Table: %s\n", $finfo[$i]->table); printf("max. Len: %d\n", $finfo[$i]->max_length); printf("Flags: %d\n", $finfo[$i]->flags); printf("Type: %d\n\n", $finfo[$i]->type); } mysqli_free_result($result); } /* close connection */ mysqli_close($link); ?>`

Результат выполнения данного примера:

    Name:     Name
    Table:    Country
    max. Len: 11
    Flags:    1
    Type:     254

    Name:     SurfaceArea
    Table:    Country
    max. Len: 10
    Flags:    32769
    Type:     4

Пред. | Начало | След.
mysqli_fetch_field | Уровень выше | mysqli_fetch_lengths