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

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

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><H1
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>odbc_binmode</H1
><DIV
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><A
NAME="AEN160299"
></A
><P
>    (PHP 3 &#62;= 3.0.6, PHP 4, PHP 5)</P
>odbc_binmode&nbsp;--&nbsp;Handling of binary column data</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN160302"
></A
><H2
>Description</H2
>bool <B
CLASS="methodname"
>odbc_binmode</B
> ( resource result_id, int mode )<BR
></BR
><P
>&#13;   (ODBC SQL types affected: BINARY, VARBINARY, LONGVARBINARY)
  </P
><P
></P
><UL
><LI
><P
>&#13;     ODBC_BINMODE_PASSTHRU: Passthru BINARY data
    </P
></LI
><LI
><P
>&#13;     ODBC_BINMODE_RETURN: Return as is
    </P
></LI
><LI
><P
>&#13;     ODBC_BINMODE_CONVERT: Convert to char and return
    </P
></LI
></UL
><P
>&#13;   When binary SQL data is converted to character C data, each byte
   (8 bits) of source data is represented as two ASCII characters.
   These characters are the ASCII character representation of the
   number in its hexadecimal form. For example, a binary 00000001 is
   converted to <TT
CLASS="literal"
>"01"</TT
> and a binary 11111111 is
   converted to <TT
CLASS="literal"
>"FF"</TT
>.
   <DIV
CLASS="table"
><A
NAME="AEN160324"
></A
><P
><B
>表 1. LONGVARBINARY handling</B
></P
><TABLE
BORDER="1"
CLASS="CALSTABLE"
><COL><COL><COL><THEAD
><TR
><TH
>binmode</TH
><TH
>longreadlen</TH
><TH
>result</TH
></TR
></THEAD
><TBODY
><TR
><TD
>ODBC_BINMODE_PASSTHRU</TD
><TD
>0</TD
><TD
>passthru</TD
></TR
><TR
><TD
>ODBC_BINMODE_RETURN</TD
><TD
>0</TD
><TD
>passthru</TD
></TR
><TR
><TD
>ODBC_BINMODE_CONVERT</TD
><TD
>0</TD
><TD
>passthru</TD
></TR
><TR
><TD
>ODBC_BINMODE_PASSTHRU</TD
><TD
>0</TD
><TD
>passthru</TD
></TR
><TR
><TD
>ODBC_BINMODE_PASSTHRU</TD
><TD
>&#62;0</TD
><TD
>passthru</TD
></TR
><TR
><TD
>ODBC_BINMODE_RETURN</TD
><TD
>&#62;0</TD
><TD
>return as is</TD
></TR
><TR
><TD
>ODBC_BINMODE_CONVERT</TD
><TD
>&#62;0</TD
><TD
>return as char</TD
></TR
></TBODY
></TABLE
></DIV
>
  </P
><P
>&#13;   If <A
HREF="function.odbc-fetch-into.html"
><B
CLASS="function"
>odbc_fetch_into()</B
></A
> is used, passthru means
   that an empty string is returned for these columns.
  </P
><P
>&#13;   If <CODE
CLASS="parameter"
>result_id</CODE
> is <TT
CLASS="literal"
>0</TT
>, the
   settings apply as default for new results.
   <DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>注意: </B
>
     Default for longreadlen is <TT
CLASS="literal"
>4096</TT
> and binmode
     defaults to <TT
CLASS="literal"
>ODBC_BINMODE_RETURN</TT
>.  Handling
     of binary long columns is also affected by
     <A
HREF="function.odbc-longreadlen.html"
><B
CLASS="function"
>odbc_longreadlen()</B
></A
>
    </P
></BLOCKQUOTE
></DIV
>
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