pg_result_seek

(PHP 4 >= 4.3.0, PHP 5)

pg_result_seek — Set internal row offset in result resource

Описание

bool pg_result_seek ( resource $result , int $offset )

pg_result_seek() sets the internal row offset in a result resource.

Список параметров

result

PostgreSQL query result resource, returned by pg_query(), pg_query_params() or pg_execute() (among others).

offset

Row to move the internal offset to in the result resource. Rows are numbered starting from zero.

Возвращаемые значения

Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.

Примеры

Пример #1 pg_result_seek() example

<?php

// Connect to the database
$conn pg_pconnect("dbname=publisher");

// Execute a query
$result pg_query($conn"SELECT author, email FROM authors");

// Seek to the 3rd row (assuming there are 3 rows)
pg_result_seek($result2);

// Fetch the 3rd row
$row pg_fetch_row($result);
 
?>

Коментарии

Ah, this is a handy feature for resetting the record index, for example, if you're used pg_fetch_{row,array,assoc} to iterate over the result set, and you want to do it again later on, without reexecuting your query. Something like:

<?php pg_result_seek($result0); ?>

will allow you to iterate over the result set all over again...
2004-09-17 23:01:34
http://php5.kiev.ua/manual/ru/function.pg-result-seek.html

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