pg_get_notify

(PHP 4 >= 4.3.0, PHP 5)

pg_get_notify -- Ping database connection

Popis

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.

Príklady

Príklad 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);
}
?>

Tiež pozri

pg_get_pid()