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 PHP manuál : function.pg-get-notify.html

pg_get_notify
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pg_get_notify

(PHP 4 >= 4.3.0, PHP 5)

pg_get_notify -- Gets SQL NOTIFY message

Description

array pg_get_notify ( resource connection [, int result_type] )

pg_get_notify() gets notify message sent by NOTIFY SQL command. To receive notify messages, LISTEN SQL command must be issued. If there is notify message on the connection, array contains message name and backend PID is returned. If there is no message, FALSE is returned.

Examples

Example 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);
}
?>

See Also

pg_get_pid()

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pg_free_resultUppg_get_pid

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