Руководство по PHP
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pg_result_error

(PHP 4 >= 4.2.0, PHP 5)

pg_result_error --  Get error message associated with result

Описание

string pg_result_error ( resource result )

pg_result_error() returns any error message associated with the result resource. Therefore, the user has a better chance of getting the correct error message than with pg_last_error().

The function pg_result_error_field() can give much greater detail on result errors than pg_result_error().

Because pg_query() returns FALSE if the query fails, you must use pg_send_query() and pg_get_result() to get the result handle.

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_result_error_field()
pg_query()
pg_send_query()
pg_get_result()
pg_last_error()
pg_last_notice()

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pg_result_error_fieldУровень вышеpg_result_seek