db2_free_stmt
(PECL ibm_db2 >= 1.0.0)
db2_free_stmt — Frees resources associated with the indicated statement resource
Описание
bool db2_free_stmt
( resource
$stmt
)Frees the system and database resources that are associated with a statement resource. These resources are freed implicitly when a script finishes, but you can call db2_free_stmt() to explicitly free the statement resources before the end of the script.
Список параметров
-
stmt -
A valid statement resource.
Возвращаемые значения
Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.
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Коментарии
Update: as of version 1.9.2, db2_free_stmt() was not only deprecated, but its functionality removed completely. It returns TRUE but does nothing.
Instead of db2_free_stmt(), use the aforementioned $stmt = ''; to trigger the statement's destructor.
It is advised to destroy the statement resource in this way if the statement variable is later re-used with another db2_prepare in the same request.
Example:
$stmt = db2_prepare($conn, $sql1);
// more code goes here
$stmt = ''; // destroy statement resource before assigning another statement to the same variable.
$stmt = db2_prepare($conn, $sql2);