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>pg_connection_busy</H1
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> (PHP 4 >= 4.2.0, PHP 5)</P
>pg_connection_busy --
获知连接是否为忙
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><H2
>说明</H2
>bool <B
CLASS="methodname"
>pg_connection_busy</B
> ( resource connection )<BR
></BR
><P
> <B
CLASS="function"
>pg_connection_busy()</B
> 在此连接状态为忙的时候返回 <TT
CLASS="constant"
><B
>TRUE</B
></TT
>。如果连接状态为忙，说明前一个查询仍然在执行。如果调用 <A
HREF="function.pg-get-result.html"
><B
CLASS="function"
>pg_get_result()</B
></A
> 函数的话，则会被锁死。
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>例 1. <B
CLASS="function"
>pg_connection_busy()</B
> 例子</B
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><code><font color="#000000">
<font color="#0000BB"><?php<br /> $dbconn </font><font color="#007700">= </font><font color="#0000BB">pg_connect</font><font color="#007700">(</font><font color="#DD0000">"dbname=publisher"</font><font color="#007700">) or die(</font><font color="#DD0000">"Could not connect"</font><font color="#007700">);<br /> </font><font color="#0000BB">$bs </font><font color="#007700">= </font><font color="#0000BB">pg_connection_busy</font><font color="#007700">(</font><font color="#0000BB">$dbconn</font><font color="#007700">);<br /> if (</font><font color="#0000BB">$bs</font><font color="#007700">) {<br /> echo </font><font color="#DD0000">'connection is busy'</font><font color="#007700">;<br /> }<br /> else {<br /> echo </font><font color="#DD0000">'connection is not busy'</font><font color="#007700">;<br /> }<br /></font><font color="#0000BB">?></font>
</font>
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</P
><P
> 参见 <A
HREF="function.pg-connection-status.html"
><B
CLASS="function"
>pg_connection_status()</B
></A
> 和 <A
HREF="function.pg-get-result.html"
><B
CLASS="function"
>pg_get_result()</B
></A
>。
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