PHP. Руководство по PHP. 2005

pg_get_notify

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pg_get_notify

(PHP 4 >= 4.3.0, PHP 5)pg_get_notify -- Gets SQL NOTIFY message

Описание

array pg_get_notify (resource connection [, int result_type])

pg_get_notify() gets notifications generated by a

NOTIFY SQL command. To receive notifications,

the LISTEN SQL command must be

issued.

Список параметров

connection

PostgreSQL database connection resource.

result_type

An optional parameter that controls

how the returned array is indexed.

result_type is a constant and can take the

following values: PGSQL_ASSOC,

PGSQL_NUM and PGSQL_BOTH.

Using PGSQL_NUM, pg_get_notify()

will return an array with numerical indices, using

PGSQL_ASSOC it will return only associative indices

while PGSQL_BOTH, the default, will return both

numerical and associative indices.

Возвращаемые значения

An array containing the NOTIFY message name and backend PID.
Otherwise if no NOTIFY is waiting, then FALSE is returned.

Примеры

Пример 1. PostgreSQL NOTIFY message
<?php $conn = pg_pconnect("dbname=publisher"); if (!$conn){ echo "An error occured.\n"; exit; } // Listen 'author_updated' message from other processes pg_query($conn, 'LISTEN author_updated;'); $notify = pg_get_notify($conn); if (!$notify){ echo "No messages\n"; } else { print_r($notify); } ?>

Смотрите также

pg_get_pid()

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pg_free_result
Уровень выше
pg_get_pid

Отвечу на любые вопросы. С уважением, Дмитрий Владимирович.

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