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php-manual-zh-5.2.4-1mdv2008.1.noarch.rpm

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>db2_conn_errormsg</H1
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NAME="AEN80084"
></A
><P
>    (PECL)</P
>db2_conn_errormsg&nbsp;--&nbsp;
   Returns the last connection error message and SQLCODE value
  </DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN80087"
></A
><H2
>说明</H2
>string <B
CLASS="methodname"
>db2_conn_errormsg</B
> ( [resource connection] )<BR
></BR
><P
>&#13;   <B
CLASS="function"
>db2_conn_errormsg()</B
> returns an error message and SQLCODE
   value representing the reason the last database connection attempt failed.
   As <A
HREF="function.db2-connect.html"
><B
CLASS="function"
>db2_connect()</B
></A
> returns <TT
CLASS="constant"
><B
>FALSE</B
></TT
> in the event of a failed
   connection attempt, do not pass any parameters to
   <B
CLASS="function"
>db2_conn_errormsg()</B
> to retrieve the associated error
   message and SQLCODE value.
  </P
><P
>&#13;   If, however, the connection was successful but becomes invalid over time,
   you can pass the <CODE
CLASS="parameter"
>connection</CODE
> parameter to retrieve
   the associated error message and SQLCODE value for a specific connection.
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN80102"
></A
><H2
>参数</H2
><P
>&#13;   <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>connection</CODE
></DT
><DD
><P
>&#13;        A connection resource associated with a connection that initially
        succeeded, but which over time became invalid.
       </P
></DD
></DL
></DIV
>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN80111"
></A
><H2
>返回值</H2
><P
>&#13;   Returns a string containing the error message and SQLCODE value resulting
   from a failed connection attempt. If there is no error associated with the last
   connection attempt, <B
CLASS="function"
>db2_conn_errormsg()</B
> returns an empty
   string.
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN80115"
></A
><H2
>范例</H2
><P
>&#13;   <TABLE
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><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN80118"
></A
><P
><B
>例 1. Retrieving the error message returned by a failed connection attempt</B
></P
><P
>&#13;     The following example demonstrates how to return an error message and
     SQLCODE value after deliberately passing invalid parameters to
     <A
HREF="function.db2-connect.html"
><B
CLASS="function"
>db2_connect()</B
></A
>.
    </P
><TABLE
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><TD
><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$conn </font><font color="#007700">= </font><font color="#0000BB">db2_connect</font><font color="#007700">(</font><font color="#DD0000">'badname'</font><font color="#007700">, </font><font color="#DD0000">'baduser'</font><font color="#007700">, </font><font color="#DD0000">'badpassword'</font><font color="#007700">);<br />if (!</font><font color="#0000BB">$conn</font><font color="#007700">) {<br />&nbsp;&nbsp;&nbsp;&nbsp;print </font><font color="#0000BB">db2_conn_errormsg</font><font color="#007700">();<br />}<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
></TR
></TABLE
><P
>上例将输出:</P
><TABLE
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><TD
><PRE
CLASS="screen"
>[IBM][CLI Driver] SQL1013N  The database alias name
or database name "BADNAME" could not be found.  SQLSTATE=42705
 SQLCODE=-1013</PRE
></TD
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></DIV
></TD
></TR
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>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN80125"
></A
><H2
>参见</H2
><P
>&#13;   <P
></P
><TABLE
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><TBODY
><TR
><TD
><A
HREF="function.db2-conn-error.html"
><B
CLASS="function"
>db2_conn_error()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.db2-connect.html"
><B
CLASS="function"
>db2_connect()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.db2-stmt-error.html"
><B
CLASS="function"
>db2_stmt_error()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.db2-stmt-errormsg.html"
><B
CLASS="function"
>db2_stmt_errormsg()</B
></A
></TD
></TR
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