ifx_prepare
(PHP 3>= 3.0.4, PHP 4 )
ifx_prepare -- Prepare an SQL-statement for execution
Description
int ifx_prepare ( string query, int conn_id [, int cursor_def,
mixed blobidarray])
Returns an integer result_id for use by ifx_do(). Sets affected_rows
for retrieval by the ifx_affected_rows() function.
Prepares query on connection conn_id. For "select-type"
queries a cursor is declared and opened. The optional cursor_type
parameter allows you to make this a "scroll" and/or
"hold" cursor. It's a bitmask and can be either
IFX_SCROLL, IFX_HOLD, or both or'ed together.
For either query type the estimated number of affected
rows is saved for retrieval by ifx_affected_rows().
If you have BLOB (BYTE or TEXT) columns in the query, you
can add a blobidarray parameter containing the corresponding
"blob ids", and you should replace those columns
with a "?" in the query text.
If the contents of the TEXT (or BYTE) column allow it,
you can also use "ifx_textasvarchar(1)" and "ifx_byteasvarchar(1)".
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.
With ifx_textasvarchar(0) or ifx_byteasvarchar(0) (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).
See also: ifx_do().
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