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)
(PHP 4 >= 4.2.0, PHP 5, PHP 7)
pg_connection_busy — 获知连接是否为忙
$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';
}
?>
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)