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>maxdb_stmt_affected_rows</H1
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><A
NAME="AEN112622"
></A
><P
>    (PECL)</P
>maxdb_stmt_affected_rows<P
>    (no version information, might be only in CVS)</P
>maxdb_stmt-&#62;affected_rows&nbsp;--&nbsp;Returns the total number of rows changed, deleted, or
  inserted by the last executed statement
  </DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN112626"
></A
><H2
>Description</H2
><P
>Procedural style :</P
>int <B
CLASS="methodname"
>maxdb_stmt_affected_rows</B
> ( resource stmt )<BR
></BR
><P
>Object oriented style (property):</P
>class <B
CLASS="classname"
>stmt</B
> { <BR
></BR
>int affected_rows<BR
></BR
>}<P
>&#13;   <B
CLASS="function"
>maxdb_stmt_affected_rows()</B
> returns the number of rows affected
   by INSERT, UPDATE, or DELETE query. If the last query was invalid or the
   number of rows can not determined, this function will return -1.
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN112644"
></A
><H2
>Return Values</H2
><P
>&#13;   An integer greater than zero indicates the number of rows affected or retrieved.
   Zero indicates that no records where updated for an UPDATE/DELETE statement, no
   rows matched the WHERE clause in the query or that no query has yet been executed.
   -1 indicates that the query has returned an error or the number of rows can not determined.
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN112647"
></A
><H2
>See also</H2
><P
>&#13;   <A
HREF="function.maxdb-stmt-num-rows.html"
><B
CLASS="function"
>maxdb_stmt_num_rows()</B
></A
>,
   <A
HREF="function.maxdb-prepare.html"
><B
CLASS="function"
>maxdb_prepare()</B
></A
>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN112652"
></A
><H2
>Example</H2
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><P
><B
>例 1. Object oriented style</B
></P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
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><TD
><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$maxdb </font><font color="#007700">= new </font><font color="#0000BB">maxdb</font><font color="#007700">(</font><font color="#DD0000">"localhost"</font><font color="#007700">, </font><font color="#DD0000">"MONA"</font><font color="#007700">, </font><font color="#DD0000">"RED"</font><font color="#007700">, </font><font color="#DD0000">"DEMODB"</font><font color="#007700">);<br /><br /></font><font color="#FF8000">/* check connection */<br /></font><font color="#007700">if (</font><font color="#0000BB">maxdb_connect_errno</font><font color="#007700">()) {<br />&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">printf</font><font color="#007700">(</font><font color="#DD0000">"Connect failed: %s\n"</font><font color="#007700">, </font><font color="#0000BB">maxdb_connect_error</font><font color="#007700">());<br />&nbsp;&nbsp;&nbsp;exit();<br />}<br /><br /></font><font color="#FF8000">/* create temp table */<br /></font><font color="#0000BB">$maxdb</font><font color="#007700">-&gt;</font><font color="#0000BB">query</font><font color="#007700">(</font><font color="#DD0000">"CREATE TABLE temp.mycity LIKE hotel.city"</font><font color="#007700">);<br /><br /></font><font color="#0000BB">$query </font><font color="#007700">= </font><font color="#DD0000">"INSERT INTO temp.mycity SELECT * FROM hotel.city WHERE state LIKE ?"</font><font color="#007700">;<br /><br /></font><font color="#FF8000">/* prepare statement */<br /></font><font color="#007700">if (</font><font color="#0000BB">$stmt </font><font color="#007700">= </font><font color="#0000BB">$maxdb</font><font color="#007700">-&gt;</font><font color="#0000BB">prepare</font><font color="#007700">(</font><font color="#0000BB">$query</font><font color="#007700">)) {<br /><br />&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">/* Bind variable for placeholder */<br />&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">$code </font><font color="#007700">= </font><font color="#DD0000">'N%'</font><font color="#007700">;<br />&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">$stmt</font><font color="#007700">-&gt;</font><font color="#0000BB">bind_param</font><font color="#007700">(</font><font color="#DD0000">"s"</font><font color="#007700">, </font><font color="#0000BB">$code</font><font color="#007700">);<br /><br />&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">/* execute statement */<br />&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">$stmt</font><font color="#007700">-&gt;</font><font color="#0000BB">execute</font><font color="#007700">();<br /><br />&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">printf</font><font color="#007700">(</font><font color="#DD0000">"rows inserted: %d\n"</font><font color="#007700">, </font><font color="#0000BB">$stmt</font><font color="#007700">-&gt;</font><font color="#0000BB">affected_rows</font><font color="#007700">);<br /><br />&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">/* close statement */<br />&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">$stmt</font><font color="#007700">-&gt;</font><font color="#0000BB">close</font><font color="#007700">();<br />}<br /><br /></font><font color="#FF8000">/* close connection */<br /></font><font color="#0000BB">$maxdb</font><font color="#007700">-&gt;</font><font color="#0000BB">close</font><font color="#007700">();<br /></font><font color="#0000BB">?&gt;</font>
</font>
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><P
><B
>例 2. Procedural style</B
></P
><TABLE
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><TD
><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$link </font><font color="#007700">= </font><font color="#0000BB">maxdb_connect</font><font color="#007700">(</font><font color="#DD0000">"localhost"</font><font color="#007700">, </font><font color="#DD0000">"MONA"</font><font color="#007700">, </font><font color="#DD0000">"RED"</font><font color="#007700">, </font><font color="#DD0000">"DEMODB"</font><font color="#007700">);<br /><br /></font><font color="#FF8000">/* check connection */<br /></font><font color="#007700">if (</font><font color="#0000BB">maxdb_connect_errno</font><font color="#007700">()) {<br />&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">maxdb_connect_error</font><font color="#007700">());<br />&nbsp;&nbsp;&nbsp;exit();<br />}<br /><br /></font><font color="#FF8000">/* create temp table */<br /></font><font color="#0000BB">maxdb_query</font><font color="#007700">(</font><font color="#0000BB">$link</font><font color="#007700">, </font><font color="#DD0000">"CREATE TABLE temp.mycity LIKE hotel.city"</font><font color="#007700">);<br /><br /></font><font color="#0000BB">$query </font><font color="#007700">= </font><font color="#DD0000">"INSERT INTO temp.mycity SELECT * FROM hotel.city WHERE state LIKE ?"</font><font color="#007700">;<br /><br /></font><font color="#FF8000">/* prepare statement */<br /></font><font color="#007700">if (</font><font color="#0000BB">$stmt </font><font color="#007700">= </font><font color="#0000BB">maxdb_prepare</font><font color="#007700">(</font><font color="#0000BB">$link</font><font color="#007700">, </font><font color="#0000BB">$query</font><font color="#007700">)) {<br /><br />&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">/* Bind variable for placeholder */<br />&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">$code </font><font color="#007700">= </font><font color="#DD0000">'N%'</font><font color="#007700">;<br />&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">maxdb_stmt_bind_param</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">, </font><font color="#DD0000">"s"</font><font color="#007700">, </font><font color="#0000BB">$code</font><font color="#007700">);<br /><br />&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">/* execute statement */<br />&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">maxdb_stmt_execute</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">);<br /><br />&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">printf</font><font color="#007700">(</font><font color="#DD0000">"rows inserted: %d\n"</font><font color="#007700">, </font><font color="#0000BB">maxdb_stmt_affected_rows</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">));<br /><br />&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">/* close statement */<br />&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">maxdb_stmt_close</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">);<br />}<br /><br /></font><font color="#FF8000">/* close connection */<br /></font><font color="#0000BB">maxdb_close</font><font color="#007700">(</font><font color="#0000BB">$link</font><font color="#007700">);<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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><P
>&#13;   The above examples would produce the following output:
  </P
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><PRE
CLASS="screen"
>rows inserted: 4</PRE
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