pg_connection_busy

(PHP 4 >= 4.2.0, PHP 5)

pg_connection_busy — 获知连接是否为忙

说明

bool pg_connection_busy ( resource $connection )

pg_connection_busy() 在此连接状态为忙的时候返回 TRUE 。如果连接状态为忙，说明前一个查询仍然在执行。如果调用 pg_get_result() 函数的话，则会被锁死。

Example #1 pg_connection_busy() 例子

  <?php
    $dbconn  =  pg_connect ( "dbname=publisher" ) or die( "Could not connect" );
     $bs  =  pg_connection_busy ( $dbconn );
    if ( $bs ) {
        echo  'connection is busy' ;
    }
    else {
       echo  'connection is not busy' ;
    }
 ?>

参见 pg_connection_status() 和 pg_get_result() 。

用户评论:

[#1] levi at alliancesoftware dot com dot au [2009-11-08 17:00:18]

pg_connection_busy() returning true does not necessarily mean that there are results waiting for pg_get_result(); it also stays true for some time after a query that causes any sort of postgres error. (See http://bugs.php.net/bug.php?id=36469)