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

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><H1
><A
NAME="function.mysqli-stmt-bind-result"
></A
>mysqli_stmt_bind_result</H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN141913"
></A
><P
>    (PHP 5)</P
>mysqli_stmt_bind_result<P
>    (no version information, might be only in CVS)</P
>stmt-&#62;bind_result()&nbsp;--&nbsp;Binds variables to a prepared statement for result storage</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN141917"
></A
><H2
>说明</H2
><P
>Procedural style:</P
>bool <B
CLASS="methodname"
>mysqli_stmt_bind_result</B
> ( mysqli_stmt stmt, mixed &#38;var1 [, mixed &#38;...] )<BR
></BR
><P
>Object oriented style (method):</P
>class <B
CLASS="classname"
>mysqli_stmt</B
> { <BR
></BR
>bool <B
CLASS="methodname"
>bind_result</B
> ( mixed &#38;var1 [, mixed &#38;...] )<BR
></BR
>}<P
>&#13;   Binds columns in the result set to variables.
  </P
><P
>&#13;   When <A
HREF="function.mysqli-stmt-fetch.html"
><B
CLASS="function"
>mysqli_stmt_fetch()</B
></A
> is called to fetch data, the
   MySQL client/server protocol places the data for the bound columns into
   the specified variables <CODE
CLASS="parameter"
>var1, ...</CODE
>.
  </P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>注意: </B
>
    Note that all columns must be bound after 
    <A
HREF="function.mysqli-stmt-execute.html"
><B
CLASS="function"
>mysqli_stmt_execute()</B
></A
> and prior to calling
    <A
HREF="function.mysqli-stmt-fetch.html"
><B
CLASS="function"
>mysqli_stmt_fetch()</B
></A
>.
    Depending on column types bound variables can silently change to the
    corresponding PHP type.
   </P
><P
>&#13;    A column can be bound or rebound at any time, even after a result set has
    been partially retrieved. The new binding takes effect the next time 
    <A
HREF="function.mysqli-stmt-fetch.html"
><B
CLASS="function"
>mysqli_stmt_fetch()</B
></A
> is called.
   </P
></BLOCKQUOTE
></DIV
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN141955"
></A
><H2
>参数</H2
><P
>&#13;   <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>&#13;stmt</CODE
></DT
><DD
><P
>Procedural style only: A statement identifier
returned by <A
HREF="function.mysqli-stmt-init.html"
><B
CLASS="function"
>mysqli_stmt_init()</B
></A
>.</P
></DD
><DT
><CODE
CLASS="parameter"
>var1</CODE
></DT
><DD
><P
>&#13;       The variable to be bound.
      </P
></DD
></DL
></DIV
>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN141970"
></A
><H2
>返回值</H2
><P
>&#13;   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
><DIV
CLASS="refsect1"
><A
NAME="AEN141975"
></A
><H2
>范例</H2
><TABLE
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BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
CLASS="EXAMPLE"
><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN141977"
></A
><P
><B
>例 1. Object oriented style</B
></P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
CELLPADDING="5"
><TR
><TD
><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$mysqli </font><font color="#007700">= new </font><font color="#0000BB">mysqli</font><font color="#007700">(</font><font color="#DD0000">"localhost"</font><font color="#007700">, </font><font color="#DD0000">"my_user"</font><font color="#007700">, </font><font color="#DD0000">"my_password"</font><font color="#007700">, </font><font color="#DD0000">"world"</font><font color="#007700">);<br /><br />if (</font><font color="#0000BB">mysqli_connect_errno</font><font color="#007700">()) {<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">printf</font><font color="#007700">(</font><font color="#DD0000">"Connect failed: %s\n"</font><font color="#007700">, </font><font color="#0000BB">mysqli_connect_error</font><font color="#007700">());<br />&nbsp;&nbsp;&nbsp;&nbsp;exit();<br />}<br /><br /></font><font color="#FF8000">/* prepare statement */<br /></font><font color="#007700">if (</font><font color="#0000BB">$stmt </font><font color="#007700">= </font><font color="#0000BB">$mysqli</font><font color="#007700">-&gt;</font><font color="#0000BB">prepare</font><font color="#007700">(</font><font color="#DD0000">"SELECT Code, Name FROM Country ORDER BY Name LIMIT 5"</font><font color="#007700">)) {<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">$stmt</font><font color="#007700">-&gt;</font><font color="#0000BB">execute</font><font color="#007700">();<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">/* bind variables to prepared statement */<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">$stmt</font><font color="#007700">-&gt;</font><font color="#0000BB">bind_result</font><font color="#007700">(</font><font color="#0000BB">$col1</font><font color="#007700">, </font><font color="#0000BB">$col2</font><font color="#007700">);<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">/* fetch values */<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#007700">while (</font><font color="#0000BB">$stmt</font><font color="#007700">-&gt;</font><font color="#0000BB">fetch</font><font color="#007700">()) {<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">printf</font><font color="#007700">(</font><font color="#DD0000">"%s %s\n"</font><font color="#007700">, </font><font color="#0000BB">$col1</font><font color="#007700">, </font><font color="#0000BB">$col2</font><font color="#007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">/* close statement */<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">$stmt</font><font color="#007700">-&gt;</font><font color="#0000BB">close</font><font color="#007700">();<br />}<br /></font><font color="#FF8000">/* close connection */<br /></font><font color="#0000BB">$mysqli</font><font color="#007700">-&gt;</font><font color="#0000BB">close</font><font color="#007700">();<br /><br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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CLASS="EXAMPLE"
><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN141980"
></A
><P
><B
>例 2. Procedural style</B
></P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
CELLPADDING="5"
><TR
><TD
><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$link </font><font color="#007700">= </font><font color="#0000BB">mysqli_connect</font><font color="#007700">(</font><font color="#DD0000">"localhost"</font><font color="#007700">, </font><font color="#DD0000">"my_user"</font><font color="#007700">, </font><font color="#DD0000">"my_password"</font><font color="#007700">, </font><font color="#DD0000">"world"</font><font color="#007700">);<br /><br /></font><font color="#FF8000">/* check connection */<br /></font><font color="#007700">if (!</font><font color="#0000BB">$link</font><font color="#007700">) {<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">printf</font><font color="#007700">(</font><font color="#DD0000">"Connect failed: %s\n"</font><font color="#007700">, </font><font color="#0000BB">mysqli_connect_error</font><font color="#007700">());<br />&nbsp;&nbsp;&nbsp;&nbsp;exit();<br />}<br /><br /></font><font color="#FF8000">/* prepare statement */<br /></font><font color="#007700">if (</font><font color="#0000BB">$stmt </font><font color="#007700">= </font><font color="#0000BB">mysqli_prepare</font><font color="#007700">(</font><font color="#0000BB">$link</font><font color="#007700">, </font><font color="#DD0000">"SELECT Code, Name FROM Country ORDER BY Name LIMIT 5"</font><font color="#007700">)) {<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">mysqli_stmt_execute</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">);<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">/* bind variables to prepared statement */<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">mysqli_stmt_bind_result</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">, </font><font color="#0000BB">$col1</font><font color="#007700">, </font><font color="#0000BB">$col2</font><font color="#007700">);<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">/* fetch values */<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#007700">while (</font><font color="#0000BB">mysqli_stmt_fetch</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">)) {<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">printf</font><font color="#007700">(</font><font color="#DD0000">"%s %s\n"</font><font color="#007700">, </font><font color="#0000BB">$col1</font><font color="#007700">, </font><font color="#0000BB">$col2</font><font color="#007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">/* close statement */<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">mysqli_stmt_close</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">);<br />}<br /><br /></font><font color="#FF8000">/* close connection */<br /></font><font color="#0000BB">mysqli_close</font><font color="#007700">(</font><font color="#0000BB">$link</font><font color="#007700">);<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
><P
>上例将输出：</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
CELLPADDING="5"
><TR
><TD
><PRE
CLASS="screen"
>AFG Afghanistan
ALB Albania
DZA Algeria
ASM American Samoa
AND Andorra</PRE
></TD
></TR
></TABLE
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN141985"
></A
><H2
>参见</H2
><P
>&#13;   <P
></P
><TABLE
BORDER="0"
><TBODY
><TR
><TD
><A
HREF="function.mysqli-stmt-bind-param.html"
><B
CLASS="function"
>mysqli_stmt_bind_param()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.mysqli-stmt-execute.html"
><B
CLASS="function"
>mysqli_stmt_execute()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.mysqli-stmt-fetch.html"
><B
CLASS="function"
>mysqli_stmt_fetch()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.mysqli-prepare.html"
><B
CLASS="function"
>mysqli_prepare()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.mysqli-stmt-prepare.html"
><B
CLASS="function"
>mysqli_stmt_prepare()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.mysqli-stmt-init.html"
><B
CLASS="function"
>mysqli_stmt_init()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.mysqli-stmt-errno.html"
><B
CLASS="function"
>mysqli_stmt_errno()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.mysqli-stmt-error.html"
><B
CLASS="function"
>mysqli_stmt_error()</B
></A
></TD
></TR
></TBODY
></TABLE
><P
></P
>
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