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ibase_execute

Name

ibase_execute — Execute a prepared query

Synopsis

mixed ibase_execute(query[, bind]);
resource query: Query handle
mixed bind (optional): Variables to bind into parameter placeholders

Returns

Result set handle, TRUE if query wasn't SELECT but successful, FALSE on error

Description

Executes a query prepared with ibase_prepare() . Since preparing a query for execution is quite an expensive operation, it pays off to prepare it only once and then execute the prepared query several times supplying it with variables to bind into parameter placeholders, if possible. This is a very effective technique when the query runs for example inside a loop and only some of its parameters change by each iteration.

The number of optional bind parameters must match the number of parameter placeholders (question marks) in the prepared query.

UPDATE, INSERT and DELETE queries return TRUE if they were successful, SELECT queries return a result set handle, even if the result set contains 0 rows. You'll have to check with ibase_fetch_row() or ibase_fetch_object() to see whether you actually got something back.

Note

Available in PHP 3 since 3.0.6, PHP 4

Example

Example 540. Execute a prepared query inside a loop

$db = ibase_connect('/path/to/employees.gdb') or die("Couldn't connect to database!");
// give a raise to the lucky ones
$query = ibase_prepare($db, 'UPDATE employees SET salary = salary + 100 WHERE emp_no = ?');
$lucky_ones = array(12, 65, 109);
foreach ($lucky_ones as $got_raise) {
    ibase_execute($query, $got_raise);
}



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.

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