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sqlsrv_free_stmt — Frees all resources for the specified statement
Frees all resources for the specified statement. The statement cannot be used after sqlsrv_free_stmt() has been called on it. If sqlsrv_free_stmt() is called on an in-progress statement that alters server state, statement execution is terminated and the statement is rolled back.
stmt
The statement for which resources are freed.
Note that null
is a valid parameter value. This allows the function to be
called multiple times in a script.
Example #1 sqlsrv_free_stmt() example
<?php$serverName = "serverName\sqlexpress";$connectionInfo = array( "Database"=>"dbName", "UID"=>"username", "PWD"=>"password");$conn = sqlsrv_connect( $serverName, $connectionInfo);if( $conn === false ) { die( print_r( sqlsrv_errors(), true));}$stmt = sqlsrv_query( $conn, "SELECT * FROM Table_1");if( $stmt === false ) { die( print_r( sqlsrv_errors(), true));}/*------------------------------- Process query results here.-------------------------------*//* Free the statement resources. */sqlsrv_free_stmt( $stmt);?>
The main difference between sqlsrv_free_stmt() and sqlsrv_cancel() is that a statement resource cancelled with sqlsrv_cancel() can be re-executed if it was created with sqlsrv_prepare(). A statement resource cancelled with sqlsrv_free_statement() cannot be re-executed.