Руководство по PHP
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# mysqli_field_seek

(PHP 5)

mysqli_field_seek

(no version information, might be only in CVS)

result->field_seek -- Set result pointer to a specified field offset

## Description

Procedural style:

int mysqli_field_seek ( mysqli_result result, int fieldnr )

Object oriented style (method):

class mysqli_result {
int field_seek ( int fieldnr )
}

Sets the field cursor to the given offset. The next call to mysqli_fetch_field() will retrieve the field definition of the column associated with that offset.

> Замечание: To seek to the beginning of a row, pass an offset value of zero.

## Возвращаемые значения

mysqli_field_seek() returns previuos value of field cursor.

## Смотрите также

mysqli_fetch_field().

## 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 2nd column */ $result->field_seek(1); $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 */ $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, $query)) { /* Get field information for 2nd column */ mysqli_field_seek($result, 1); $finfo = mysqli_fetch_field($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", $finfo->type); mysqli_free_result($result); } /* close connection */ mysqli_close($link); ?>`

Результат выполнения данного примера:

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

Пред. | Начало | След.
mysqli_field_count | Уровень выше | mysqli_field_tell