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

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

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>ifx_prepare</H1
><DIV
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><A
NAME="AEN100515"
></A
><P
>    (PHP 3 &#62;= 3.0.4, PHP 4, PHP 5)</P
>ifx_prepare&nbsp;--&nbsp;Prepare an SQL-statement for execution</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN100518"
></A
><H2
>说明</H2
>resource <B
CLASS="methodname"
>ifx_prepare</B
> ( string query, resource link_identifier [, int cursor_def, mixed blobidarray] )<BR
></BR
><P
>&#13;   Prepares a <CODE
CLASS="parameter"
>query</CODE
> for later use with
   <A
HREF="function.ifx-do.html"
><B
CLASS="function"
>ifx_do()</B
></A
>.
  </P
><P
>&#13;   For "select-type" queries a cursor is declared and opened.
   Non-select queries are "execute immediate".
  </P
><P
>&#13;   For either query type the number of (estimated or real) affected rows is
   saved for retrieval by <A
HREF="function.ifx-affected-rows.html"
><B
CLASS="function"
>ifx_affected_rows()</B
></A
>.
  </P
><P
>&#13;   If the contents of the TEXT (or BYTE) column allow it, you can also use
   <TT
CLASS="literal"
>ifx_textasvarchar(1)</TT
> and 
   <TT
CLASS="literal"
>ifx_byteasvarchar(1)</TT
>.  This allows you to treat TEXT
   (or BYTE) columns just as if they were ordinary (but long) VARCHAR columns
   for select queries, and you don't need to bother with blob id's.
  </P
><P
>&#13;   With <TT
CLASS="literal"
>ifx_textasvarchar(0)</TT
> or 
   <TT
CLASS="literal"
>ifx_byteasvarchar(0)</TT
> (the default situation), select
   queries will return BLOB columns as blob id's (integer value).  You can
   get the value of the blob as a string or file with the blob functions (see
   below).
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN100547"
></A
><H2
>参数</H2
><P
>&#13;   <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>query</CODE
></DT
><DD
><P
>&#13;       The query string.
      </P
></DD
><DT
><CODE
CLASS="parameter"
>link_identifier</CODE
></DT
><DD
><P
>&#13;       The link identifier.
      </P
></DD
><DT
><CODE
CLASS="parameter"
>cursor_def</CODE
></DT
><DD
><P
>&#13;       This optional parameter allows you to make this a 
       <TT
CLASS="literal"
>scroll</TT
> and/or <TT
CLASS="literal"
>hold</TT
> cursor.
       It's a bitmask and can be either <TT
CLASS="constant"
><B
>IFX_SCROLL</B
></TT
>,
       <TT
CLASS="constant"
><B
>IFX_HOLD</B
></TT
>, or both or'ed together.
      </P
></DD
><DT
><CODE
CLASS="parameter"
>blobidarray</CODE
></DT
><DD
><P
>&#13;       If you have BLOB (BYTE or TEXT) columns in the query, you can add
       a <CODE
CLASS="parameter"
>blobidarray</CODE
> parameter containing the
       corresponding "blob ids", and you should replace those columns
       with a "?" in the query text.
      </P
></DD
></DL
></DIV
>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN100576"
></A
><H2
>返回值</H2
><P
>&#13;   Returns a valid result identifier for use by <A
HREF="function.ifx-do.html"
><B
CLASS="function"
>ifx_do()</B
></A
>,
   or <TT
CLASS="constant"
><B
>FALSE</B
></TT
> on errors.
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN100581"
></A
><H2
>参见</H2
><P
>&#13;   <P
></P
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