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>PHP 手册</TH
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><H1
><A
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>mysqli_stmt_fetch</H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN142291"
></A
><P
> (PHP 5)</P
>mysqli_stmt_fetch<P
> (no version information, might be only in CVS)</P
>stmt->fetch() -- Fetch results from a prepared statement into the bound variables</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN142295"
></A
><H2
>说明</H2
><P
>Procedural style:</P
>bool <B
CLASS="methodname"
>mysqli_stmt_fetch</B
> ( mysqli_stmt stmt )<BR
></BR
><P
>Object oriented style (method):</P
>class <B
CLASS="classname"
>mysqli_stmt</B
> { <BR
></BR
>bool <B
CLASS="methodname"
>fetch</B
> ( void )<BR
></BR
>}<P
> Fetch the result from a prepared statement into the variables bound by
<A
HREF="function.mysqli-stmt-bind-result.html"
><B
CLASS="function"
>mysqli_stmt_bind_result()</B
></A
>.
</P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>注意: </B
>
Note that all columns must be bound by the application before calling
<B
CLASS="function"
>mysqli_stmt_fetch()</B
>.
</P
></BLOCKQUOTE
></DIV
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN142317"
></A
><H2
>参数</H2
><P
> <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
> 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
></DL
></DIV
>
</P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN142327"
></A
><H2
>返回值</H2
><DIV
CLASS="table"
><A
NAME="AEN142329"
></A
><P
><B
>表 1. 返回值</B
></P
><TABLE
BORDER="1"
CLASS="CALSTABLE"
><COL><COL><THEAD
><TR
><TH
>Value</TH
><TH
>Description</TH
></TR
></THEAD
><TBODY
><TR
><TD
><TT
CLASS="constant"
><B
>TRUE</B
></TT
></TD
><TD
>Success. Data has been fetched</TD
></TR
><TR
><TD
><TT
CLASS="constant"
><B
>FALSE</B
></TT
></TD
><TD
>Error occured</TD
></TR
><TR
><TD
><TT
CLASS="constant"
><B
>NULL</B
></TT
></TD
><TD
>No more rows/data exists or data truncation occurred</TD
></TR
></TBODY
></TABLE
></DIV
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN142349"
></A
><H2
>范例</H2
><TABLE
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><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN142351"
></A
><P
><B
>例 1. Object oriented style</B
></P
><TABLE
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><TD
><code><font color="#000000">
<font color="#0000BB"><?php<br />$mysqli </font><font color="#007700">= new </font><font color="#0000BB">mysqli</font><font color="#007700">(</font><font color="#DD0000">"localhost"</font><font color="#007700">, </font><font color="#DD0000">"my_user"</font><font color="#007700">, </font><font color="#DD0000">"my_password"</font><font color="#007700">, </font><font color="#DD0000">"world"</font><font color="#007700">);<br /><br /></font><font color="#FF8000">/* check connection */<br /></font><font color="#007700">if (</font><font color="#0000BB">mysqli_connect_errno</font><font color="#007700">()) {<br /> </font><font color="#0000BB">printf</font><font color="#007700">(</font><font color="#DD0000">"Connect failed: %s\n"</font><font color="#007700">, </font><font color="#0000BB">mysqli_connect_error</font><font color="#007700">());<br /> exit();<br />}<br /><br /></font><font color="#0000BB">$query </font><font color="#007700">= </font><font color="#DD0000">"SELECT Name, CountryCode FROM City ORDER by ID DESC LIMIT 150,5"</font><font color="#007700">;<br /><br />if (</font><font color="#0000BB">$stmt </font><font color="#007700">= </font><font color="#0000BB">$mysqli</font><font color="#007700">-></font><font color="#0000BB">prepare</font><font color="#007700">(</font><font color="#0000BB">$query</font><font color="#007700">)) {<br /><br /> </font><font color="#FF8000">/* execute statement */<br /> </font><font color="#0000BB">$stmt</font><font color="#007700">-></font><font color="#0000BB">execute</font><font color="#007700">();<br /><br /> </font><font color="#FF8000">/* bind result variables */<br /> </font><font color="#0000BB">$stmt</font><font color="#007700">-></font><font color="#0000BB">bind_result</font><font color="#007700">(</font><font color="#0000BB">$name</font><font color="#007700">, </font><font color="#0000BB">$code</font><font color="#007700">);<br /><br /> </font><font color="#FF8000">/* fetch values */<br /> </font><font color="#007700">while (</font><font color="#0000BB">$stmt</font><font color="#007700">-></font><font color="#0000BB">fetch</font><font color="#007700">()) {<br /> </font><font color="#0000BB">printf </font><font color="#007700">(</font><font color="#DD0000">"%s (%s)\n"</font><font color="#007700">, </font><font color="#0000BB">$name</font><font color="#007700">, </font><font color="#0000BB">$code</font><font color="#007700">);<br /> }<br /><br /> </font><font color="#FF8000">/* close statement */<br /> </font><font color="#0000BB">$stmt</font><font color="#007700">-></font><font color="#0000BB">close</font><font color="#007700">();<br />}<br /><br /></font><font color="#FF8000">/* close connection */<br /></font><font color="#0000BB">$mysqli</font><font color="#007700">-></font><font color="#0000BB">close</font><font color="#007700">();<br /></font><font color="#0000BB">?></font>
</font>
</code></TD
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><TR
><TD
><DIV
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><A
NAME="AEN142354"
></A
><P
><B
>例 2. Procedural style</B
></P
><TABLE
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><TD
><code><font color="#000000">
<font color="#0000BB"><?php<br />$link </font><font color="#007700">= </font><font color="#0000BB">mysqli_connect</font><font color="#007700">(</font><font color="#DD0000">"localhost"</font><font color="#007700">, </font><font color="#DD0000">"my_user"</font><font color="#007700">, </font><font color="#DD0000">"my_password"</font><font color="#007700">, </font><font color="#DD0000">"world"</font><font color="#007700">);<br /><br /></font><font color="#FF8000">/* check connection */<br /></font><font color="#007700">if (</font><font color="#0000BB">mysqli_connect_errno</font><font color="#007700">()) {<br /> </font><font color="#0000BB">printf</font><font color="#007700">(</font><font color="#DD0000">"Connect failed: %s\n"</font><font color="#007700">, </font><font color="#0000BB">mysqli_connect_error</font><font color="#007700">());<br /> exit();<br />}<br /><br /></font><font color="#0000BB">$query </font><font color="#007700">= </font><font color="#DD0000">"SELECT Name, CountryCode FROM City ORDER by ID DESC LIMIT 150,5"</font><font color="#007700">;<br /><br />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="#0000BB">$query</font><font color="#007700">)) {<br /><br /> </font><font color="#FF8000">/* execute statement */<br /> </font><font color="#0000BB">mysqli_stmt_execute</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">);<br /><br /> </font><font color="#FF8000">/* bind result variables */<br /> </font><font color="#0000BB">mysqli_stmt_bind_result</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">, </font><font color="#0000BB">$name</font><font color="#007700">, </font><font color="#0000BB">$code</font><font color="#007700">);<br /><br /> </font><font color="#FF8000">/* fetch values */<br /> </font><font color="#007700">while (</font><font color="#0000BB">mysqli_stmt_fetch</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">)) {<br /> </font><font color="#0000BB">printf </font><font color="#007700">(</font><font color="#DD0000">"%s (%s)\n"</font><font color="#007700">, </font><font color="#0000BB">$name</font><font color="#007700">, </font><font color="#0000BB">$code</font><font color="#007700">);<br /> }<br /><br /> </font><font color="#FF8000">/* close statement */<br /> </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">?></font>
</font>
</code></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
><P
>上例将输出：</P
><TABLE
BORDER="0"
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><TR
><TD
><PRE
CLASS="screen"
>Rockford (USA)
Tallahassee (USA)
Salinas (USA)
Santa Clarita (USA)
Springfield (USA)</PRE
></TD
></TR
></TABLE
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN142359"
></A
><H2
>参见</H2
><P
> <P
></P
><TABLE
BORDER="0"
><TBODY
><TR
><TD
><A
HREF="function.mysqli-prepare.html"
><B
CLASS="function"
>mysqli_prepare()</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
><TR
><TD
><A
HREF="function.mysqli-stmt-bind-result.html"
><B
CLASS="function"
>mysqli_stmt_bind_result()</B
></A
></TD
></TR
></TBODY
></TABLE
><P
></P
>
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