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>pg_transaction_status</H1
><DIV
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><P
> (PHP 5 >= 5.1.0RC1)</P
>pg_transaction_status -- Returns the current in-transaction status of the server.</DIV
><DIV
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><H2
>说明</H2
>int <B
CLASS="methodname"
>pg_transaction_status</B
> ( resource connection )<BR
></BR
><P
> Returns the current in-transaction status of the server.
</P
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>小心</B
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> <B
CLASS="function"
>pg_transaction_status()</B
> will give incorrect results when using
a PostgreSQL 7.3 server that has the parameter <TT
CLASS="literal"
>autocommit</TT
>
set to off. The server-side autocommit feature has been
deprecated and does not exist in later server versions.
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><H2
>参数</H2
><P
> <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>connection</CODE
></DT
><DD
><P
> PostgreSQL database connection resource.
</P
></DD
></DL
></DIV
>
</P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN187263"
></A
><H2
>返回值</H2
><P
>The status can be <TT
CLASS="constant"
><B
>PGSQL_TRANSACTION_IDLE</B
></TT
> (currently idle),
<TT
CLASS="constant"
><B
>PGSQL_TRANSACTION_ACTIVE</B
></TT
> (a command is in progress),
<TT
CLASS="constant"
><B
>PGSQL_TRANSACTION_INTRANS</B
></TT
> (idle, in a valid transaction block),
or <TT
CLASS="constant"
><B
>PGSQL_TRANSACTION_INERROR</B
></TT
> (idle, in a failed transaction block).
<TT
CLASS="constant"
><B
>PGSQL_TRANSACTION_UNKNOWN</B
></TT
> is reported if the connection is bad.
<TT
CLASS="constant"
><B
>PGSQL_TRANSACTION_ACTIVE</B
></TT
> is reported only when a query
has been sent to the server and not yet completed.
</P
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><DIV
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></A
><H2
>范例</H2
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><B
>例 1. <B
CLASS="function"
>pg_transaction_status()</B
> example</B
></P
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><code><font color="#000000">
<font color="#0000BB"><?php<br /> $dbconn </font><font color="#007700">= </font><font color="#0000BB">pg_connect</font><font color="#007700">(</font><font color="#DD0000">"dbname=publisher"</font><font color="#007700">) or die(</font><font color="#DD0000">"Could not connect"</font><font color="#007700">);<br /> </font><font color="#0000BB">$stat </font><font color="#007700">= </font><font color="#0000BB">pg_transaction_status</font><font color="#007700">(</font><font color="#0000BB">$dbconn</font><font color="#007700">);<br /> if (</font><font color="#0000BB">$stat </font><font color="#007700">=== </font><font color="#0000BB">PGSQL_TRANSACTION_UNKNOWN</font><font color="#007700">) {<br /> echo </font><font color="#DD0000">'Connection is bad'</font><font color="#007700">;<br /> } else if (</font><font color="#0000BB">$stat </font><font color="#007700">=== </font><font color="#0000BB">PGSQL_TRANSACTION_IDLE</font><font color="#007700">) {<br /> echo </font><font color="#DD0000">'Connection is currently idle'</font><font color="#007700">;<br /> } else {<br /> echo </font><font color="#DD0000">'Connection is in a transaction state'</font><font color="#007700">;<br /> } <br /></font><font color="#0000BB">?></font>
</font>
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