pg_transaction_status
(PHP 5 >= 5.1.0)
pg_transaction_status — Returns the current in-transaction status of the server.
说明
$connection
)Returns the current in-transaction status of the server.
pg_transaction_status() will give incorrect results when using a PostgreSQL 7.3 server that has the parameter autocommit set to off. The server-side autocommit feature has been deprecated and does not exist in later server versions.
参数
-
connection -
PostgreSQL database connection resource.
返回值
The status can be PGSQL_TRANSACTION_IDLE (currently idle),
PGSQL_TRANSACTION_ACTIVE (a command is in progress),
PGSQL_TRANSACTION_INTRANS (idle, in a valid transaction block),
or PGSQL_TRANSACTION_INERROR (idle, in a failed transaction block).
PGSQL_TRANSACTION_UNKNOWN is reported if the connection is bad.
PGSQL_TRANSACTION_ACTIVE is reported only when a query
has been sent to the server and not yet completed.
范例
Example #1 pg_transaction_status() example
<?php
$dbconn = pg_connect ( "dbname=publisher" ) or die( "Could not connect" );
$stat = pg_transaction_status ( $dbconn );
if ( $stat === PGSQL_TRANSACTION_UNKNOWN ) {
echo 'Connection is bad' ;
} else if ( $stat === PGSQL_TRANSACTION_IDLE ) {
echo 'Connection is currently idle' ;
} else {
echo 'Connection is in a transaction state' ;
}
?> 用户评论:
[#1] btherl at yahoo dot com dot au [2006-07-17 19:27:09]
This function is implemented in C, so there's no way to mimic it in SQL for older versions of PHP. But you can mimic some of the functionality by using a wrapper which keeps track of when you begin and commit/rollback transactions.