`odbc_close()` does not report success and some drivers (namely Microsoft Access) don't seem to close connections at first attempt. This is normally not an issue, unless you need to establish many connections within the script lifetime.
You can use the fact that resource type changes (e.g. from "odbc link" to "Unknown") as a trick to figure out whether connection was successfully closed (and eventually retry):
<?php
$type = get_resource_type($conn);
$wait_until = time() + 3;
do {
odbc_close($conexion_odbc);
} while (get_resource_type($conn)===$type && time()<$wait_until);
odbc_close
(PHP 4, PHP 5, PHP 7, PHP 8)
odbc_close — Cerrar una conexión ODBC
Descripción
Cierra una conexión a un servidor de bases de datos.
Valores devueltos
No devuelve ningún valor.
Notas
Nota:
Esta función fallará si hay transaccines abiertas sobre una conexión. En este caso la conexión permanecerá abierta.
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User Contributed Notes 1 note
alvaro at demogracia dot com ¶
6 years ago
