Prepares a query for executuin. The result handler returned can be passed to ifx_do() for execution. This function allows a SQL query to be sent to the database for parsing and the approximate number of rows affected by the query returned without actually executing the query itself. If using a non-SELECT query, the approximate number of affected rows is returned. The accurate number os returned when ifx_do() is called.
By default a normal sequential cursor is used i.e. Only the next row in the result can be returned. Specifying an optional cursor allows either 'scroll' or 'hold' cursors to be used. These are defined using the constants IFX_SCROLL and IFX_HOLD and they can be used singly or bitwise or'd together. A scroll cursor allows rows in the result set to be retrieved in any sequence. A hold cursor allows access to a result set across transactions and the cursor does not close at the end of the trnasaction.
If the query contains BLOBS use the blobidarray parameter to specify the blob columns in your quwry. Remember to replace the column in the SQL query with a ?. ifx_query() replaces the columns with the correct data when the query is executed.
PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at http://www.opencontent.org/openpub/). The authors of this book have elected not to choose any options under the OPL. This online book was obtained from http://www.fooassociates.com/phpfer/ and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.