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>sybase_set_message_handler</H1
><DIV
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><A
NAME="AEN233222"
></A
><P
> (PHP 4 >= 4.3.0, PHP 5)</P
>sybase_set_message_handler -- Sets the handler called when a server message is raised</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN233225"
></A
><H2
>Description</H2
>bool <B
CLASS="methodname"
>sybase_set_message_handler</B
> ( callback handler [, resource connection] )<BR
></BR
><P
>
<B
CLASS="function"
>sybase_set_message_handler()</B
> sets a user function to
handle messages generated by the server. You may specify the name of a
global function, or use an array to specify an object reference and a
method name.
</P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>注意: </B
>本函数仅适用于 Sybase 的 CT 库接口，而不适用于 DB 库。</P
></BLOCKQUOTE
></DIV
><P
> The handler expects five arguments in the following order: message
number, severity, state, line number and description. The first four are
integers. The last is a string. If the function returns <TT
CLASS="constant"
><B
>FALSE</B
></TT
>, PHP
generates an ordinary error message.
</P
><P
> 如果成功则返回 <TT
CLASS="constant"
><B
>TRUE</B
></TT
>，失败则返回 <TT
CLASS="constant"
><B
>FALSE</B
></TT
>。
</P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>注意: </B
>
The <CODE
CLASS="parameter"
>connection</CODE
> parameter was added in
PHP 4.3.5.
</P
></BLOCKQUOTE
></DIV
><P
> <TABLE
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><A
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></A
><P
><B
>例 1. <B
CLASS="function"
>sybase_set_message_handler()</B
> callback function</B
></P
><TABLE
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><TD
><code><font color="#000000">
<font color="#0000BB"><?php<br /> </font><font color="#007700">function </font><font color="#0000BB">msg_handler</font><font color="#007700">(</font><font color="#0000BB">$msgnumber</font><font color="#007700">, </font><font color="#0000BB">$severity</font><font color="#007700">, </font><font color="#0000BB">$state</font><font color="#007700">, </font><font color="#0000BB">$line</font><font color="#007700">, </font><font color="#0000BB">$text</font><font color="#007700">) <br /> {<br /> </font><font color="#0000BB">var_dump</font><font color="#007700">(</font><font color="#0000BB">$msgnumber</font><font color="#007700">, </font><font color="#0000BB">$severity</font><font color="#007700">, </font><font color="#0000BB">$state</font><font color="#007700">, </font><font color="#0000BB">$line</font><font color="#007700">, </font><font color="#0000BB">$text</font><font color="#007700">);<br /> }<br /> <br /> </font><font color="#0000BB">sybase_set_message_handler</font><font color="#007700">(</font><font color="#DD0000">'msg_handler'</font><font color="#007700">);<br /></font><font color="#0000BB">?></font>
</font>
</code></TD
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>
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><A
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></A
><P
><B
>例 2. <B
CLASS="function"
>sybase_set_message_handler()</B
> callback to a class</B
></P
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><code><font color="#000000">
<font color="#0000BB"><?php<br /> </font><font color="#007700">class </font><font color="#0000BB">Sybase </font><font color="#007700">{<br /> function </font><font color="#0000BB">handler</font><font color="#007700">(</font><font color="#0000BB">$msgnumber</font><font color="#007700">, </font><font color="#0000BB">$severity</font><font color="#007700">, </font><font color="#0000BB">$state</font><font color="#007700">, </font><font color="#0000BB">$line</font><font color="#007700">, </font><font color="#0000BB">$text</font><font color="#007700">) <br /> {<br /> </font><font color="#0000BB">var_dump</font><font color="#007700">(</font><font color="#0000BB">$msgnumber</font><font color="#007700">, </font><font color="#0000BB">$severity</font><font color="#007700">, </font><font color="#0000BB">$state</font><font color="#007700">, </font><font color="#0000BB">$line</font><font color="#007700">, </font><font color="#0000BB">$text</font><font color="#007700">);<br /> }<br /> }<br /> <br /> </font><font color="#0000BB">$sybase</font><font color="#007700">= new </font><font color="#0000BB">Sybase</font><font color="#007700">();<br /> </font><font color="#0000BB">sybase_set_message_handler</font><font color="#007700">(array(</font><font color="#0000BB">$sybase</font><font color="#007700">, </font><font color="#DD0000">'handler'</font><font color="#007700">));<br /></font><font color="#0000BB">?></font>
</font>
</code></TD
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CLASS="example"
><A
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></A
><P
><B
>例 3. <B
CLASS="function"
>sybase_set_message_handler()</B
> unhandled messages</B
></P
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><code><font color="#000000">
<font color="#0000BB"><?php<br /> </font><font color="#FF8000">// Return FALSE from this function to indicate you can't handle<br /> // this. The error is printed out as a warning, the way you're used<br /> // to it if there is no handler installed.<br /> </font><font color="#007700">function </font><font color="#0000BB">msg_handler</font><font color="#007700">(</font><font color="#0000BB">$msgnumber</font><font color="#007700">, </font><font color="#0000BB">$severity</font><font color="#007700">, </font><font color="#0000BB">$state</font><font color="#007700">, </font><font color="#0000BB">$line</font><font color="#007700">, </font><font color="#0000BB">$text</font><font color="#007700">) <br /> {<br /> if (</font><font color="#0000BB">257 </font><font color="#007700">== </font><font color="#0000BB">$msgnumber</font><font color="#007700">) {<br /> return </font><font color="#0000BB">false</font><font color="#007700">;<br /> }<br /> </font><font color="#0000BB">var_dump</font><font color="#007700">(</font><font color="#0000BB">$msgnumber</font><font color="#007700">, </font><font color="#0000BB">$severity</font><font color="#007700">, </font><font color="#0000BB">$state</font><font color="#007700">, </font><font color="#0000BB">$line</font><font color="#007700">, </font><font color="#0000BB">$text</font><font color="#007700">);<br /> }<br /> <br /> </font><font color="#0000BB">sybase_set_message_handler</font><font color="#007700">(</font><font color="#DD0000">'msg_handler'</font><font color="#007700">);<br /></font><font color="#0000BB">?></font>
</font>
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