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><H1
><A
NAME="function.sesam-fetch-result"
></A
>sesam_fetch_result</H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN206706"
></A
><P
> (PHP 3 CVS only)</P
>sesam_fetch_result -- Return all or part of a query result</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN206709"
></A
><H2
>说明</H2
>mixed <B
CLASS="methodname"
>sesam_fetch_result</B
> ( string result_id [, int max_rows] )<BR
></BR
><P
> Fetches a result, optionally limited to <CODE
CLASS="parameter"
>max_rows</CODE
>.
</P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN206722"
></A
><H2
>参数</H2
><P
> <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>result_id</CODE
></DT
><DD
><P
> A valid result id returned by <A
HREF="function.sesam-query.html"
><B
CLASS="function"
>sesam_query()</B
></A
>.
</P
></DD
><DT
><CODE
CLASS="parameter"
>max_rows</CODE
></DT
><DD
><P
> Note that the amount of memory used up by a large query may be
gigantic. Use the <CODE
CLASS="parameter"
>max_rows</CODE
> parameter to
limit the maximum number of rows returned, unless you are
absolutely sure that your result will not use up all available
memory.
</P
></DD
></DL
></DIV
>
</P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN206738"
></A
><H2
>返回值</H2
><P
> Returns a mixed array with the query result entries, optionally
limited to a maximum of <CODE
CLASS="parameter"
>max_rows</CODE
> rows.
Note that both row and column indexes are zero-based.
<DIV
CLASS="table"
><A
NAME="AEN206742"
></A
><P
><B
>表 1.
Mixed result set returned by <B
CLASS="function"
>sesam_fetch_result()</B
>
</B
></P
><TABLE
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CLASS="CALSTABLE"
><COL><COL><THEAD
><TR
><TH
>Array Element</TH
><TH
>Contents</TH
></TR
></THEAD
><TBODY
><TR
><TD
>int $arr["count"]</TD
><TD
> number of columns in result set (or zero if this was an
"immediate" query)
</TD
></TR
><TR
><TD
>int $arr["rows"]</TD
><TD
> number of rows in result set (between zero and
<CODE
CLASS="parameter"
>max_rows</CODE
>)
</TD
></TR
><TR
><TD
>bool $arr["truncated"]</TD
><TD
> <TT
CLASS="constant"
><B
>TRUE</B
></TT
> if the number of rows was at least
<CODE
CLASS="parameter"
>max_rows</CODE
>, <TT
CLASS="constant"
><B
>FALSE</B
></TT
>
otherwise. Note that even when this is
<TT
CLASS="constant"
><B
>TRUE</B
></TT
>, the next
<B
CLASS="function"
>sesam_fetch_result()</B
> call may return zero
rows because there are no more result entries.
</TD
></TR
><TR
><TD
>mixed $arr[col][row]</TD
><TD
> result data for all the fields at
row(<TT
CLASS="literal"
>row</TT
>) and
column(<TT
CLASS="literal"
>col</TT
>), (where the integer index
<TT
CLASS="literal"
>row</TT
> is between 0 and
<TT
CLASS="literal"
>$arr["rows"]-1</TT
>, and
<TT
CLASS="literal"
>col</TT
> is between 0 and
<TT
CLASS="literal"
>$arr["count"]-1</TT
>). Fields may be empty, so
you must check for the existence of a field by using the php
<A
HREF="function.isset.html"
><B
CLASS="function"
>isset()</B
></A
> function. The type of the
returned fields depend on the respective SQL type declared
for its column (see <A
HREF="ref.sesam.html"
>SESAM
overview</A
> for the conversions applied). SESAM
"multiple fields" are "inlined" and treated like a sequence
of columns.
</TD
></TR
></TBODY
></TABLE
></DIV
>
</P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN206777"
></A
><H2
>参见</H2
><P
> <P
></P
><TABLE
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><TBODY
><TR
><TD
><A
HREF="function.sesam-fetch-array.html"
><B
CLASS="function"
>sesam_fetch_array()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.sesam-fetch-row.html"
><B
CLASS="function"
>sesam_fetch_row()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.sesam-query.html"
><B
CLASS="function"
>sesam_query()</B
></A
></TD
></TR
></TBODY
></TABLE
><P
></P
>
</P
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