Sophie: php-manual-zh-5.2.4-1mdv2008.1 noarch

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

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>socket_strerror</H1
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>    (PHP 4 &#62;= 4.1.0, PHP 5)</P
>socket_strerror&nbsp;--&nbsp;Return a string describing a socket error</DIV
><DIV
CLASS="refsect1"
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NAME="AEN213854"
></A
><H2
>Description</H2
>string <B
CLASS="methodname"
>socket_strerror</B
> ( int errno )<BR
></BR
><P
>&#13;     <B
CLASS="function"
>socket_strerror()</B
> takes as its
     <CODE
CLASS="parameter"
>errno</CODE
> parameter a socket error code as returned by
     <A
HREF="function.socket-last-error.html"
><B
CLASS="function"
>socket_last_error()</B
></A
> and returns the corresponding
     explanatory text. This makes it a bit more pleasant to figure out why
     something didn't work; for instance, instead of having to track down a
     system include file to find out what '-111' means, you just pass it to
     <B
CLASS="function"
>socket_strerror()</B
>, and it tells you what happened.
    </P
><P
>&#13;     <TABLE
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><P
><B
>例 1. <B
CLASS="function"
>socket_strerror()</B
> example</B
></P
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br /></font><font color="#007700">if (</font><font color="#0000BB">false </font><font color="#007700">== (</font><font color="#0000BB">$socket </font><font color="#007700">= @</font><font color="#0000BB">socket_create</font><font color="#007700">(</font><font color="#0000BB">AF_INET</font><font color="#007700">, </font><font color="#0000BB">SOCK_STREAM</font><font color="#007700">, </font><font color="#0000BB">SOL_TCP</font><font color="#007700">))) {<br />&nbsp;&nbsp;&nbsp;echo </font><font color="#DD0000">"socket_create() failed: reason: " </font><font color="#007700">. </font><font color="#0000BB">socket_strerror</font><font color="#007700">(</font><font color="#0000BB">socket_last_error</font><font color="#007700">()) . </font><font color="#DD0000">"\n"</font><font color="#007700">;<br />} <br /><br />if (</font><font color="#0000BB">false </font><font color="#007700">== (@</font><font color="#0000BB">socket_bind</font><font color="#007700">(</font><font color="#0000BB">$socket</font><font color="#007700">, </font><font color="#DD0000">'127.0.0.1'</font><font color="#007700">, </font><font color="#0000BB">80</font><font color="#007700">))) {<br />&nbsp;&nbsp;&nbsp;echo </font><font color="#DD0000">"socket_bind() failed: reason: " </font><font color="#007700">. </font><font color="#0000BB">socket_strerror</font><font color="#007700">(</font><font color="#0000BB">socket_last_error</font><font color="#007700">(</font><font color="#0000BB">$socket</font><font color="#007700">)) . </font><font color="#DD0000">"\n"</font><font color="#007700">;<br />}<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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><P
>&#13;       The expected output from the above example (assuming the script
       is not run with root privileges):
      </P
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>socket_bind() failed: reason: Permission denied</PRE
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>
    </P
><P
>&#13;     See also 
     <A
HREF="function.socket-accept.html"
><B
CLASS="function"
>socket_accept()</B
></A
>,
     <A
HREF="function.socket-bind.html"
><B
CLASS="function"
>socket_bind()</B
></A
>,
     <A
HREF="function.socket-connect.html"
><B
CLASS="function"
>socket_connect()</B
></A
>,
     <A
HREF="function.socket-listen.html"
><B
CLASS="function"
>socket_listen()</B
></A
>, and
     <A
HREF="function.socket-create.html"
><B
CLASS="function"
>socket_create()</B
></A
>.
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