PHP 5.4.31 Released

pg_get_notify

(PHP 4 >= 4.3.0, PHP 5)

pg_get_notifyPing 数据库连接

说明

array pg_get_notify ( resource $connection [, int $result_type ] )

pg_get_notify() 取得 SQL 命令 NOTIFY 发送的通告消息。要接收通告消息,必须发送 SQL 命令 LISTEN。如果连接中有通告消息,则数组包含消息名并且返回后端的 PID。如果没有消息则返回 FALSE

参见 pg_get_pid()

Example #1 PostgreSQL NOTIFY 消息

<?php 
$conn 
pg_pconnect("dbname=publisher");
if (!
$conn) {
    echo 
"An error occured.\n";
    exit;
}

// Listen 'author_updated' message from other processes
pq_query($conn'LISTEN author_updated;');
$notify pg_get_notify($conn);
if (!
$notify)
    print(
"No messages\n");
else
    
print_r($notify);
?>

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