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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($result, 2); // Fetch the 3rd row $row = pg_fetch_row($result); ?>

Смотрите также

pg_fetch_row()

pg_fetch_assoc()

pg_fetch_array()

pg_fetch_object()

pg_fetch_result()

add a note User Contributed Notes
pg_result_seek

andrew-php dot net at andrew dot net dot au
17-Sep-2004 08:01


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($result, 0); ?>



will allow you to iterate over the result set all over again...

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pg_result_status

pg_result_error

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